English
Related papers

Related papers: Magnon equilibrium spin current in collinear antif…

200 papers

Exchange bias is usually rationalized invoking spin pinning effects caused by uncompensated antiferromagnetic interfaces. However, for compensated antiferromagnets other extrinsic factors, such as interface roughness or spin canting, have…

Motivated by the important role of the normalized second order coherence function, often called $g^{(2)}$, in the field of quantum optics, we propose a method to determine magnon coherence in solid-state devices. Namely, we show that the…

Mesoscale and Nanoscale Physics · Physics 2019-05-15 Scott A. Bender , Akashdeep Kamra , Wolfgang Belzig , Rembert A. Duine

We theoretically demonstrate that the presence of Dzyaloshinskii-Moriya Interaction (DMI) can lead to enhancement of the spin-motive force (SMF) arising due to field-induced ferromagnetic domain wall motion. A SMF refers to an electric…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 Yuta Yamane

In the circular photogalvanic effect, circularly polarized light can produce a direct electron photocurrent in metals and the direction of the current depends on the polarization. We suggest that an analogous nonlinear effect exists for…

Mesoscale and Nanoscale Physics · Physics 2018-10-16 Igor Proskurin , Alexander S. Ovchinnikov , Jun-ichiro Kishine , Robert L. Stamps

We present an overview of the microscopic theory of the Dzyaloshinskii-Moriya (DM) coupling in strongly correlated 3d compounds. Most attention in the paper centers around the derivation of the Dzyaloshinskii vector, its value, orientation,…

Strongly Correlated Electrons · Physics 2019-10-24 A. S. Moskvin

In this Letter, we study the spin Nernst effect (SNE) of magnons in the nonlinear response regime. We derive the formula for the nonlinear magnon spin Nernst current by solving the Boltzmann equation and find out that it is described by an…

Mesoscale and Nanoscale Physics · Physics 2022-12-22 Hiroki Kondo , Yutaka Akagi

The microscopic conditions for the emergence of nonreciprocal magnon excitations in noncentrosymmetric magnets are theoretically investigated. We show that asymmetric magnon excitations appear when a bond magnetic toroidal dipole becomes…

Strongly Correlated Electrons · Physics 2021-11-08 Takuya Matsumoto , Satoru Hayami

We propose a mechanism whereby spin supercurrents can be manipulated in superconductor/ferromagnet proximity systems via nonequilibrium spin injection. We find that if a spin supercurrent exists in equilibrium, a nonequilibrium spin…

Superconductivity · Physics 2020-01-14 Jabir Ali Ouassou , Jason W. A. Robinson , Jacob Linder

The influence of the spin-orbit coupling on the magnetic structure of deposited transition metal nanostructure systems has been studied by fully relativistic electronic structure calculations. The interplay of exchange coupling and magnetic…

Materials Science · Physics 2009-02-20 S. Mankovsky , S. Bornemann , J. Minár , S. Polesya , H. Ebert , J. B. Staunton , A. I. Lichtenstein

In a collinear antiferromagnet with easy-axis anisotropy, symmetry dictates that the spin wave modes must be doubly degenerate. Theses two modes, distinguished by their opposite polarization and available only in antiferromagnets, give rise…

Mesoscale and Nanoscale Physics · Physics 2016-04-08 Ran Cheng , Matthew W. Daniels , Jian-Gang Zhu , Di Xiao

This work is devoted to studying the magnon-magnon interaction effect in a two-dimensional checkerboard ferromagnet with the Dzyaloshinskii-Moriya interaction. By means of the first-order Green function formalism, the influence of…

Strongly Correlated Electrons · Physics 2023-07-10 Heng Zhu , Hongchao Shi , Zhengguo Tang , Bing Tang

The richness in both the dispersion and energy of antiferromagnetic magnons has spurred the magnetism community to consider antiferromagnets for future spintronic/magnonic applications. However, the excitation and control of…

A spin model including magnetic anisotropy terms and Dzyaloshinsky-Moriya interactions is studied for the case of a ferromagnetic monolayer with C2v symmetry like Fe/W(110). Using the quasiclassical stochastic Landau-Lifshitz-Gilbert…

Strongly Correlated Electrons · Physics 2013-12-02 L. Rózsa , L. Udvardi , L. Szunyogh

Magnetic structures are investigated by means of neutron diffraction to shine a light on the intricate details that are believed to be key to understanding the magnetoelectric effect in LiCoPO$_4$ . At zero field, a spontaneous spin canting…

The long-range forces between holes in an antiferromagnet are due to magnon exchange. The one-magnon exchange potential between two holes is proportional to cos(2\phi)/r^2 where r is the distance vector of the holes and \phi is the angle…

Strongly Correlated Electrons · Physics 2009-11-11 C. Bruegger , F. Kaempfer , M. Pepe , U. -J. Wiese

Spin waves in antiferromagnetic materials have great potential for next-generation magnonic technologies. However, their properties and their dependence on the type of ground-state antiferromagnetic structure are still open questions. Here,…

Mesoscale and Nanoscale Physics · Physics 2020-10-07 Flaviano José dos Santos , Manuel dos Santos Dias , Samir Lounis

The Dzyaloshinskii-Moriya interaction is shown to result in a canting of spins in a single molecule transistor. We predict non-linear transport signatures of this effect induced by spin-orbit coupling for the generic case of a molecular…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 S. Herzog , M. R. Wegewijs

Magnetic interactions underpin a plethora of magnetic states of matter, hence playing a central role both in fundamental physics and for future spintronic and quantum computation devices. The Dzyaloshinskii-Moriya interaction, being chiral…

Mesoscale and Nanoscale Physics · Physics 2019-08-19 Sascha Brinker , Manuel dos Santos Dias , Samir Lounis

We measure and analyze the chirality of the Dzyaloshinskii-Moriya interaction (DMI) stabilized spin textures in multilayers of Ta/Co$_{20}$Fe$_{60}$B$_{20}$/MgO. The effective DMI is measured experimentally using domain wall motion…

Mesoscale and Nanoscale Physics · Physics 2018-10-10 G. V. Karnad , F. Freimuth , E. Martinez , R. Lo Conte , G. Gubbiotti , T. Schulz , S. Senz , B. Ocker , Y. Mokrousov , M. Kläui

In an easy-plane antiferromagnet with the Dzyaloshinskii-Moriya interaction (DMI), magnons are subject to an effective spin-momentum locking. An in-plane temperature gradient can generate interfacial accumulation of magnons with a specified…

Mesoscale and Nanoscale Physics · Physics 2020-12-02 Hantao Zhang , Ran Cheng
‹ Prev 1 3 4 5 6 7 10 Next ›