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Dzyaloshinskii moriya interaction

Dzyaloshinskii-Moriya interaction turns electric Nature

Here, combining theoretic analysis and experimental results, we report that the effective modulation of Dzyaloshinskii-Moriya interaction by the interfacial crystallinity between ferromagnets and.. The Dzyaloshinskii-Moriya interaction (DMI), which only exists in noncentrosymmetric systems, is responsible for the formation of exotic chiral magnetic states. The absence of DMI in most two-dimensional (2D) magnetic materials is due to their intrinsic inversion symmetry

Dzyaloshinskii-Moriya interaction - arXi

The Dzyaloshinskii-Moriya (DM) interaction 1, 2 is an antisymmetric exchange interaction that favors noncollinear alignment of magnetic moments and induces chiral magnetic order this phase can only be explained by considering also the so called Dzyaloshinskii-Moriya interaction (DMI) [4,5]. It arises due to electrons propagating in inversion asymmetric environments and is of the form E DM = D ij(S i S j) ; (1.1) with D being the Dzyaloshinskii-vector and S iand S j two magnetic moments on lattice sites iand j, respectively. The DMI favors spiraling magnetic structures of uniqu The interfacial Dzyaloshinskii-Moriya interaction (DMI) in ferromagnetic/heavy metal ultra-thin film structures has attracted a lot of attention thanks to its capability to stabilize Néel-type domain walls (DWs) and magnetic skyrmions for the realization of non-volatile memory and logic devices Thus, the Dzyaloshinskii-Moriya interaction connects the angle between the spins and the magnitude of the displacement of non-magnetic ions. In some micromagnetic structures all ligands are shifted in one direction, which leads to the appearance of macroscopic electrical polarization (see Fig. 1b). By nature, this interaction is a relativistic amendment to th

Dzyaloshinskii-Moriya-like interaction in ferroelectrics

We consider the Dzyaloshinskii - Moriya exchange interaction (DMI) as the principle mechanism responsible for appearance of spin space modulated structures (SSMS) in BiFeO 3 and focus the peculiar features of the DMI manifestation in single crystals and films Interfacial Dzyaloshinskii-Moriya interaction and dampinglike spin-orbit torque in [Co / Gd / Pt] N magnetic multilayers Tomoe Nishimura, Dae-Yun Kim, Duck-Ho Kim, Yune-Seok Nam, Yong-Keun Park, Nam-Hui Kim, Yoichi Shiota, Chun-Yeol You, Byoung-Chul Min, Sug-Bong Choe, and Teruo Ono Phys. Rev. B 103, 104409 - Published 4 March 202 In antiferromagnetic (AFM) thin films, broken inversion symmetry or coupling to adjacent heavy metals can induce Dzyaloshinskii-Moriya (DM) interactions. Knowledge of the DM parameters is essential for understanding and designing exotic spin structures, such as hedgehog Skyrmions and chiral Néel walls, which are attractive for use in novel information storage technologies. We introduce a framework for computing the DM interaction in two-dimensional Rashba antiferromagnets. Unlike in Rashba.

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Reducing Dzyaloshinskii-Moriya interaction and field-free

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Very large Dzyaloshinskii-Moriya interaction in two

The Dzyaloshinskii-Moriya interaction. Appears in. Researchers Find New Way to Manipulate Magnetism. Schematic shows how different energies of argon (Ar) ions bombarding a thin film of cobalt (Co) sandwiched between platinum (Pt) layers can twist or rotate the spin of electrons in a particular direction, by controlling an effect known as the Dzyaloshinskii-Moriya interaction (DMI). Download. Dzyaloshinskii-Moriya interaction (DMI). We find a spiral domain wall configuration of the magne-tization and obtain an analytical expression for the width of the domain wall as a function of the interaction strengths. Our findings show that above a certain value of DMI a domain wall configu-ration cannot exist in the wire. Below this value we determine the domain wall dynamics for small. The Dzyaloshinskii-Moriya interaction is shown to result in a canting of spins in a single-molecule transistor. We predict nonlinear transport signatures of this effect induced by spin-orbit coupling for the generic case of a molecular dimer. The conductance is calculated using a master equation and is found to exhibit a non-trivial dependence on the magnitude and direction of an external.

Dzyaloshinskii-Moriya interaction (DMI) is vital to form various chiral spin textures, novel behaviors of magnons and permits their potential applications in energy-efficient spintronic devices. Here, we realize a sizable bulk DMI in a transition metal dichalcogenide. The Dzyaloshinskii-Moriya interaction (DMI) is of large interest from a scientific as well as from a technological point of view. The DMI is an anti-symmetric exchange interaction, which favors perpendicular alignment of neighboring spins [1], [2]. The DMI only exists in systems with broken inversion symmetry. It is for example responsible for the canted spin-structure in α-Fe2O3 (Hematite. Dzyaloshinskii-Moriya interaction Magnetic anisotropy Spin-orbit coupling Noncollinear magnetic structures Exchange interaction ABSTRACT We report on the first-principles study of complex noncollinear magnetic structures in Uranium compounds. We contrast two cases. The first is the periodic magnetic structure of U 2Pd 2In with exactly orthogonal atomic moments, the second is an. Here we study the effects of Dzyaloshinskii-Moriya (DM) interactions in volborthite. We derive an effective model in which pseudospin-\(\frac{1}{2}\) moments emerging on trimers form a network of an anisotropic triangular lattice. Using the effective model, we show that for a magnetic field perpendicular to the kagome layer, magnon excitations from the \(\frac{1}{3}\)-plateau feel a Berry.

The Dzyaloshinskii-Moriya interaction (DMI), that is a higher-order effect, has been of great interest in the field of spintronics. 1 -3) Recent progress shows that ultrathin ferromagnetic/heavy metal (FM/HM) heterostructures combining strong spin-orbit coupling (SOC) with broken inversion symmetry give rise to the interfacial Dzyaloshinskii-Moriya interaction (iDMI). 4,5) It. An antisymmetric exchange known as Dzyaloshinskii-Moriya interactions (DMI) is vital to form various chiral spin textures, such as skyrmions, and permits their potential application in energy. The possibility of tuning the Dzyaloshinskii-Moriya interaction (DMI) by electric (E)-field gating in ultrathin magnetic materials has opened up new perspectives in terms of controlling the stabilization of chiral spin structures. The most recent efforts have used voltage-induced charge redistribution at the interface between a metal and an oxide to modulate the DMI. This approach is. The Dzyaloshinskii-Moriya interaction (DMI) results in anisotropy and nonreciprocity of SWs propagation. In this work, we study the effect of the interfacial DMI on SW Cherenkov excitations in permalloy thin-film strips within the framework of micromagnetism. By performing micromagnetic simulations, it is shown that coherent SWs are excited when the velocity of a moving magnetic source exceeds.

Symmetry-breaking interlayer Dzyaloshinskii-Moriya

  1. with Dzyaloshinskii-Moriya (DM) interaction to study the influence of the latter interaction on the spin-Peierls instability. We found that DM interaction may act either in favour of the dimerization or against it. The actual result depends on the dependence of DM interaction on the distortion amplitude in comparison with such dependence for the isotropic exchange interaction. PACS numbers.
  2. Dzyaloshinskii-Moriya interaction. Alternate Labels: Antisymmetric exchange; DMI. Disciplines. Atomic, Molecular & Optical. Condensed Matter & Materials Physics. Facets. Research Areas. Paths. Research Areas Electronic structure Spin-orbit coupling Dzyaloshinskii-Moriya interaction
  3. We propose novel ways of manipulating spin wave propagation useful for data processing and storage within the field of magnonics. We analyse the effects of the Dzyaloshinskii-Moriya interaction (DMI) on magnetic structures using an analytical formalism. The DMI is the antisymmetric form of the exchange interaction and becomes relevant in magnetic structures where surface phenomena are.
  4. Tailoring Dzyaloshinskii-Moriya interaction in a transition metal dichalcogenide by dual-intercalation. Nature Communications , 2021; 12 (1) DOI: 10.1038/s41467-021-23658-
  5. Dzyaloshinskii-Moriya interaction. by George Jackeli. Also available as: PDF , LaTeX . Dzyaloshinskii-Moriya (DM) interaction is an antisymmetric, anisotropic exchange coupling between two spins (magnetic moments) on a lattice bond with no inversion center. It is induced by a relativistic spin-orbit coupling and has the form where is so-called.
  6. We use spin-polarized scanning tunneling microscopy and density functional theory (DFT) to study domain walls (DWs) and the Dzyaloshinskii-Moriya interaction (DMI) in epitaxial films of Co/Ir(111) and Pt/Co/Ir(111). Our measurements reveal DWs with fixed rotational sense for one monolayer of Co on Ir, with a wall width around 2.7 nm
  7. I hope to convince you that the Dzyaloshinskii-Moriya Interaction presents rich new physics in magnetism and also opens the door to the design of future, energy-efficient magnetic memory. Bio. Professor Sokalski is an Associate Professor in the department of Materials Science & Engineering at Carnegie Mellon University. He obtained his B.S. in Materials Science & Engineering from the.

Synthetic chiral magnets promoted by the Dzyaloshinskii

interfacial Dzyaloshinskii Moriya interaction in Pt/Co/capping layer structures probed by Brillouin light scattering To cite this article: M Belmeguenai et al 2019 J. Phys. D: Appl. Phys. 52 125002 View the article online for updates and enhancements. Recent citations Effect of interfacial Dzyaloshinskii-Moriya interaction on polarized neutrons reflection D.A. Tatarskiy-This content was. Dzyaloshinskii-Moriya Interaction at Co / Pt Interfaces. Physical Review Letters, American Physical Society, 2015, 115 (26), pp.267210. ￿10.1103/PhysRevLett.115.267210￿. ￿hal-01576697￿ Anatomy of Dzyaloshinskii-Moriya Interaction at Co=Pt Interfaces Hongxin Yang,1,2 André Thiaville,2 Stanislas Rohart,2 Albert Fert,3 and Mairbek Chshiev1 1Univ. Grenoble Alpes, INAC-SPINTEC, 38000. T1 - Theory of the interfacial Dzyaloshinskii-Moriya interaction in Rashba antiferromagnets. AU - Qaiumzadeh, Alireza. AU - Ado, Ivan A. AU - Duine, Rembert A. AU - Titov, Mikhail. AU - Brataas, Arne. PY - 2018/5/10. Y1 - 2018/5/10. N2 - In antiferromagnetic (AFM) thin films, broken inversion symmetry or coupling to adjacent heavy metals can induce Dzyaloshinskii-Moriya (DM) interactions.

Phys. Rev. Lett. 124, 027203 (2020) - Chiral Spin-Wave ..

  1. OOMMF extension: Dzyaloshinskii-Moriya interaction (DMI) for the crystallographic class D 2d. David Cortés-Ortuño 1, Marijan Beg 1,2, Vanessa Nehruji 3, Ryan A. Pepper 1, and Hans Fangohr 1,2. 1 Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom 2 European XFEL GmbH, Holzkoppel 4, 22869 Schenefeld, German
  2. The Dzyaloshinskii-Moriya interaction (DMI) is responsible for exotic chiral and topological magnetic states such as spin spirals and skyrmions. DMI manifests at metallic ferromagnet/ heavy-metal interfaces, owing to inversion symmetry breaking and spin-orbit coupling by a heavy metal such as Pt. Moreover, in centrosymmetric magnetic oxides interfaced by Pt, DMI-driven topological spin.
  3. Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites I. A. Sergienko and E. Dagotto Condensed Matter Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA and Department of Physics, The University of Tennessee, Knoxville, Tennessee 37996, USA Received 2 August 2005; published 23 March 2006 With the perovskite multiferroic RMnO 3 R=Gd,Tb,Dy as.
  4. We are glad to announce that the International Workshop on Dzyaloshinskii-Moriya Interaction and Exotic Spin Structures (DMI 2019) will take place in Petrozavodsk, Russia on July 8 - 12, 2019. The V International Workshop DMI 2019, hosted by B.P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), follows three previous meetings held in.
  5. DA-05 - Significant Dzyaloshinskii-Moriya Interaction in Two-Ddimensional Janus Structures and its Electrically Control in 2D Magnetoelectric Multiferroics. INTERMAG 2021 • Apr 27, 2021. Hongjun Xu. DB-05 - High spin Hall conductivity in large-area type-II Dirac semimetal PtTe2. INTERMAG 2021 • Apr 27, 2021. Michael Schöbitz. DD-05 - Time resolved imaging of Œrsted field induced.
  6. We present a physical picture for the emergence of the Dzyaloshinskii-Moriya (DM) interaction based on the idea of the Doppler shift by an intrinsic spin current induced by spin-orbit interaction under broken inversion symmetry. The picture is confirmed by a rigorous effective Hamiltonian theory, which reveals that the DM coefficient is given by the magnitude of the intrinsic spin current
  7. Dzyaloshinskii-Moriya interaction (DMI) at metallic multilayer interfaces of Co thin films and heavy-metals X (X=Ir, Pt) was investigated from first principles calculations that treat spin-spirals.

Anatomy of Dzyaloshinskii-Moriya Interaction at Co/Pt

These fascinating states, however, usually are located at the interfaces or surfaces of ultrathin systems due to the short interaction range of the Dzyaloshinskii-Moriya interaction (DMI). Here, magnetic topological states in a 40‐unit cells (16 nm) SrRuO 3 layer are successfully created via an interlayer exchange coupling mechanism and the interfacial DMI and indirect exchange, both favouring chiral magnetic structures via the Dzyaloshinskii-Moriya Interaction (DMI) [1,2]. Recently, the DMI received broad attention from the magnetism community as it was found to occur in systems appealing for spintronic applications composed of a heavy metal (HM) layer and an ultrathin ferromagnetic (FM) film with perpendicular magnetic anisotropy (PMA). Here.

Spin-orbit torque and Dzyaloshinskii-Moriya interaction in

Dzyaloshinskii-Moriya Interaction. Also called the Antisymertic exchange force. Resposible for the rotation of magnetic spins in a magnetic material. Also stabilizes circularly polarized 'chains' of spins. see more » Significant Dzyaloshinskii-Moriya interaction at graphene-ferromagnet interfaces due to the Rashba effect [42] Yang B, Cui Q, Liang J, Chshiev M and Yang H 2020 Phys. Rev. B 101 014406: Reversible control of Dzyaloshinskii-Moriya interaction at the graphene/Co interface via hydrogen absorption [43

We demonstrate that indeed graphene does induce a type of Dzyaloshinskii-Moriya interaction due to the Rashba effect. First-principles calculations and experiments using spin-polarized electron microscopy show that this graphene-induced Dzyaloshinskii-Moriya interaction can have a similar magnitude to that at interfaces with heavy metals. This work paves a path towards two-dimensional-material. Dzyaloshinskii-Moriya interaction (DMI) has to be added [1,2]. This symmetry reduction can occur on the microscopic level in inversion asymmetric crystal fields and considerably influences the behavior of the naturally formed magnetic structures, such as domain walls. Thus DMIs are of major importance in the conversion of the inner structure of the domain wall from a Bloch type to a Neel.

The Dzyaloshinskii-Moriya interaction (DMI) is an antisymmetric exchange interaction that stabilizes chiral spin textures. It is induced by inversion symmetry breaking in noncentrosymmetric lattices or at interfaces. Recently, interfacial DMI has been found in magnetic layers adjacent to transition metals due to the spin-orbit coupling and at interfaces with graphene due to the Rashba effect. In the present paper, the quantum entanglement dynamics of two qubits Heisenberg-XYZ spin chain under a time dependent magnetic field effects, and considering the Dzyaloshinskii-Moriya (DM) interactions is studied. Assuming the system as being influenced by a non-Markovian environment, the dynamics of entanglement through the concurrence is studied en.wikipedia.or By taking into account the effect of intrinsic decoherence and by using Milburn's dynamical master equation, we study the temporal evolution of quantum correlations in a two-qubit XXZ Heisenberg spin chain model with Dzyaloshinskii-Moriya (DM) interaction and an external nonuniform magnetic field both directed along the z-axis

The interfacial Dzyaloshinskii-Moriya interaction (iDMI) is attracting great interest for spintronics. An iDMI constant larger than 3 mJ m -2 is expected to minimize the size of skyrmions and to optimize the domain-wall dynamics. In this study, we experimentally demonstrate a giant iDMI in Pt/Co/X/MgO ultra-thin film structures with perpendicular magnetization Two-dimensional magnets based on van der Waals materials are currently fostering great expectations for the advancement of spin-orbitronics, which aims to ex.. How do you say Dzyaloshinskii-Moriya Interaction? Listen to the audio pronunciation of Dzyaloshinskii-Moriya Interaction on pronouncekiwi. Sign in to disable ALL ads. Thank you for helping build the largest language community on the internet. pronouncekiwi.

Interfacial Dzyaloshinskii-Moriya Interaction in Pt/CoFeB

We suggest that only the contributions of the strong intralayer antiferromagnetic interaction, the moderately weak Dzyaloshinskii-Moriya interaction, and the very weak interlayer ferromagnetic interaction can realize this spin structure. On the basis of this model, characteristic magnetic-field dependences of the magnetization can be interpreted as consequences of intriguing spin. Despite being a weak spin-orbit coupling material, graphene demonstrated to induce significant Dzyaloshinskii-Moriya interaction due to the Rashba effect leading to formation of chiral spin textures in adjacent ferromagnet (FM) at graphene/FM interfaces. First-principles calculations and experiments using spin-polarized electron microscopy show that this graphene-induced Dzyaloshinskii. Computing the Dzyaloshinskii-Moriya interaction for small and large spin-orbit couplings Utrecht University Institute for Theoretical Physics Master Thesis Author: Bram van Dijk Supervisor: Dr. Rembert Duine December, 2014. Abstract Chiral magnets support topologically stable spin structures that are known as magnetic skyrmions, rst discovered in 2009. One of the mechanisms responsible for the.

Jun 16, 2021: Inducing and tuning spin interactions in layered material (Nanowerk News) Magnetic-spin interactions that allow spin-manipulation by electrical control allow potential applications in energy-efficient spintronic devices.An antisymmetric exchange known as Dzyaloshinskii-Moriya interactions (DMI) is vital to form various chiral spin textures, such as skyrmions, and permits their. T1 - Asymmetric magnetic domain-wall motion by the Dzyaloshinskii-Moriya interaction. AU - Je, Soong Geun. AU - Kim, Duck Ho. AU - Yoo, Sang Cheol. AU - Min, Byoung Chul. AU - Lee, Kyung Jin. AU - Choe, Sug Bong. PY - 2013/12/2. Y1 - 2013/12/2. N2 - We demonstrate here that ultrathin ferromagnetic Pt/Co/Pt films with perpendicular magnetic anisotropy exhibit a sizable Dzyaloshinskii-Moriya. We identify the impact of the Dzyaloshinskii-Moriya interaction on the spin-wave frequency, lifetime and the ellipticity of the magnetization precession, as well as on the excitation of spin waves by periodic excitation sources. Such sources, like microscopic coplanar waveguides, provide a certain wave-vector spectrum for the spin-wave excitation which is determined by their dimensions.

The team achieved this new capability by controlling an effect known as the Dzyaloshinskii-Moriya interaction (DMI), which imposes a preferred twist direction on spins. The DMI typically occurs at the boundary between a thin film of a magnetic metal and a nonmagnetic metal layer. The electron spins in the magnetic film interact with atoms in the nonmagnetic film, creating a preferential twist. Tailoring Dzyaloshinskii-Moriya interaction in a transition metal dichalcogenide by dual-intercalation was published in Nature Communications in June 2021. (DOI: 10.1038/s41467-021-23658-z Controlling Dzyaloshinskii-Moriya interaction (DMI) in chiral magnet iron-doped tantalum-sulfide by proton intercalation Magnetic-spin interactions that allow spin-manipulation by electrical control allow potential applications in energy-efficient spintronic devices. An antisymmetric exchange known as Dzyaloshinskii-Moriya interactions (DMI) is vital to form various chiral spin textures, such. Symmetry breaking is a fundamental concept that prevails in many branches of physics1-5. In magnetic materials, broken inversion symmetry induces the Dzyaloshinskii-Moriya interaction (DMI), which results in fascinating physical behaviours6-14 with the potential for application in future spintronic devices15-17. Here, we report the observation of a bulk DMI in GdFeCo amorphous.

Determination of the Dzyaloshinskii-Moriya interaction

Tailoring Dzyaloshinskii-Moriya interaction in a transition metal dichalcogenide by dual-intercalation was published in Nature Communications in June 2021. (DOI: 10.1038/s41467-021-23658-z) As well as support from the Australian Research Council, support was also provided by the National Natural Science Foundation of China, the National Key R&D Program of China, the Chinese Academy of. Dzyaloshinskii-Moriya term (antisymmetric) : favors perpendicular spins. The spins curl around the D vector, whose direction depends on the sign of the spin-orbit coupling and on the geometry. >0 <0 14/06/2018 10 2. What is DMI ? •History of DMI Dzyaloshinskii : some canting of the spins is allowed if there is no inversion symmetry in the crystal Dzyaloshinskii, J.Phys.Chem.Solids The effects of the Dzyaloshinskii-Moriya interaction, the most plausible source for the energy-level repulsions that lead to adiabatic changes of the magnetization, are studied in detail. We find that the energy-level repulsions that result from this interaction exhibit a strong dependence on the direction of the applied field. We also discuss the role of magnetic anisotropy in the molecule Mn.

Tuning the Dzyaloshinskii-Moriya interaction in Pt/Co/MgO

Spin transfer torque-MRAM // Spin orbit torque & Dzyaloshinskii-Moriya interaction // Magnetic chiral textures & Skyrmions // Topological Insulators & Weyl semimetals // Terahertz (THz) & Antiferromagne Derivation of the generalized non-linear sigma model in the presence of the Dzyaloshinskii Moriya interaction. Vladimir Juricic. Related Papers. Magnetic susceptibility anisotropies in a two-dimensional quantum Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions. By Vladimir Juricic. Spatially anisotropic kagome antiferromagnet with Dzyaloshinskii-Moriya interaction. By Vladimir. Magnetic-spin interactions that allow spin-manipulation by electrical control allow potential applications in energy-efficient spintronic devices. An antisymmetric exchange known as Dzyaloshinskii-Moriya interactions (DMI) is vital to form various chiral spin textures, such as skyrmions, and permits their potential application in energy-efficient spintronic devices. Published this week, a.

Indirect chiral magnetic exchange through Dzyaloshinskii

Dzyaloshinskii-Moriya (DM) interaction D ij · S i ⇥ S j • often the leading effect of Spin-Orbit (SO) interaction • reduces symmetry to U(1) [rotations about D axis] at a given bond • Easy plane anisotropy (perp. to D) • Promotes magnetic order and (typically) stabilizes incommensurate non-collinear (spiral) states D M. DM in atomic chains on surfaces DM selects! vector chirality. K. The Dzyaloshinskii-Moriya (DM) interaction and the magnetic anisotropy distribution of thin-film heterostructures, parameters that are critical in developing next-generation storage class magnetic memory technologies, are estimated from a magnetic domain image. Micromagnetic simulation is used to generate thousands of random images for training and model validation. A convolutional neural. Abstract: Dzyaloshinskii-Moriya interaction (DMI) is currently the focus point of many research efforts in the spintronics community. It is possible that applications and fundamental new physics motivate us to understand, measure, and manipulate this interaction. Using an elegant, alternative approach, we show that by depinning a domain wall from an anisotropy barrier in perpendicular magnetic. Asymmetric Spin-Wave Dispersion on Fe(110): Direct Evidence of the Dzyaloshinskii-Moriya Interaction Kh. Zakeri,1,* Y. Zhang,1 J. Prokop,1 T.-H. Chuang,1 N. Sakr,1 W.X. Tang,1,2 and J. Kirschner1 1Max-Planck-Institut fu¨r Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany 2School of Physics, Monash University, Victoria 3800, Australia (Received 20 January 2010; published 30 March 2010

The canted moment on a single kagome plane is a result of the Dzyaloshinskii-Moriya interaction. For H<Hc, the weak ferromagnetic interlayer coupling forces the spins to align in such an arrangement that the canted components on any two adjacent layers are equal and opposite, yielding a zero net magnetic moment. For H>Hc [H greater than H subscript c], the Zeeman energy overcomes the. Abstract. Invited Presentation Determination of the Dzyaloshinskii Moriya interaction for various hetero-structure (Conference Presentation) Chun-Yeol You, Inha Univ. (Korea, Republic of) ABSTRACT We investigated non-reciprocal spin wave (SW) dispersion relations by using Brillouin Light Scattering (BLS) in inversion symmetry breaking heterostructures In this paper, we address the influence of Dzyaloshinskii Moriya (DM) interaction on the thermodynamic properties of a multiferroic antiferromagnetic spin system using the spin wave theory (SWT) as a diagonalization method which, associated to the statistical physics, helps to evaluate the statistical sum. The basic factors in thermodynamics, such as the Boltzmann entropy and the specific heat. We report systematic measurements of the interfacial Dzyaloshinskii-Moriya interaction (iDMI) by employing Brillouin light scattering in Pt/Co/AlO x and Ta/Pt/Co/AlO x structures. By introducing a tantalum buffer layer, the saturation magnetization and the interfacial perpendicular magnetic anisotropy are significantly improved due to the better interface between heavy metal and ferromagnetic.

We present a theory of both the itinerant carrier-mediated RKKY interaction and the virtual excitations-mediated Bloembergen-Rowland (BR) interaction between magnetic moments in graphene induced by proximity effect with a ferromagnetic film. It is shown that the RKKY/BR interaction consists of the Heisenberg, Ising, and Dzyaloshinskii-Moriya (DM) terms The influence of the Dzyaloshinskii-Moriya interaction (DMI) on stripe domains in perpendicularly magnetized thin ferromagnetic films is theoretically and experimentally investigated. We develop a domain spacing model describing the dependence of the stripe domain width on the magnetic properties of the sample. By including the magnetostatic energy of the domain walls the model correctly. Le caractère ultra-mince de couches magnétiques y exacerbe les effets d'interfaces. Dans ces systèmes, l'interaction d'échange dite de Dzyaloshinskii-Moriya (DMI) est autorisée par la brisure de symétrie d'inversion inhérente aux interfaces. Contrairement à l'interaction d'échange de Heisenberg, la DMI favorise une rotation de l'état d'aimantation, et ce avec une. Dzyaloshinskii-Moriya Interaction pronunciation - How to properly say Dzyaloshinskii-Moriya Interaction. Listen to the audio pronunciation in several English accents

Quantum tunnelling of magnetization in the single-molecule

Mesoscale Dzyaloshinskii-Moriya interaction: geometrical tailoring of the magnetochirality — • Oleksii Volkov 1, Denis Sheka 2, Yuri Gaididei 3, Volodymyr Kravchuk 3,4, Ulrich Rößler 4, Jürgen Fassbender 1, and Denys Makarov 1 — 1 Helmholtz-Zentrum Dresden-Rossendorf e.V., Dresden, Germany — 2 Taras Shevchenko National University of Kyiv, Kyiv, Ukraine — 3 Bogolyubov Institute for. We investigate the influence of the interfacial Dzyaloshinskii-Moriya interaction (DMI) on the propagation of Damon-Eshbach spin waves in micrometer-sized Pt(2 nm)/Co(0.4 nm)/Py(5 nm)/MgO(5 nm) stripes. We use time-resolved scanning Kerr microscopy to image the spin waves excited by a microwave antenna and to directly access their dispersion In the present work, initially, a mixed-three-spin (1/2,1,1/2) cell of a mixed-N-spin chain with Ising-XY model is introduced, for which pair spins (1,1/2) have Ising-type interaction and pair spins (1/2,1/2) have both XY-type and Dzyaloshinskii-Moriya (DM) interactions together.An external homogeneous magnetic field B is considered for the system in thermal equilibrium Then, he will discuss the nature of Dzyaloshinskii-Moriya interaction in these systems, and how they can stabilize magnetic skyrmions, but also magnetic bimerons depending on the magnetic anisotropy properties [2]. Finally, he will discuss the spin-orbitronics properties of Fe3Ge2Te2 and show that in spite of its high symmetry, its inherent mirror symmetry breaking enables the onset of an in.

DrIn a homogeneous magnetic domain, all moments point in theAnomalous Hall effect (AHE) and current-induced switchingRichard AWeiwei Wang - Computational Modelling Group
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