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Equilibrium properties and localised magnon excitations are investigated in topologically distinct skyrmionic textures. The observed shape of the structures and their orientation on the lattice is explained based on their vorticities and…

Materials Science · Physics 2020-11-17 Levente Rózsa , Markus Weißenhofer , Ulrich Nowak

We discuss spectral and resonance properties of a Hamiltonian describing motion of an electron moving on a "hybrid surface" consisting on a halfline attached by its endpoints to a plane under influence of a constant magnetic field which…

Mathematical Physics · Physics 2019-12-10 Raffaele Carlone , Pavel Exner

The Rashba effect as an electrically tunable spin-orbit interaction is the base for a multitude of possible applications such as spin filters, spin transistors, and quantum computing using Majorana states in nanowires. Moreover, this…

Mesoscale and Nanoscale Physics · Physics 2016-10-13 Jan Raphael Bindel , Mike Pezzotta , Jascha Ulrich , Marcus Liebmann , Eugene Sherman , Markus Morgenstern

The generally accepted view that spin polarization is induced by the asymmetry of the global crystal space group has limited the search for spintronics [1] materials to non-centrosymmetric materials. Recently it has been suggested that spin…

The Rashba interaction induced when inversion symmetry is broken in solids is a key interaction connecting spin and charge for realizing novel magnetoelectric cross-correlation effects. Here, we theoretically explore the optical properties…

Mesoscale and Nanoscale Physics · Physics 2016-02-15 Junya Shibata , Akihito Takeuchi , Hiroshi Kohno , Gen Tatara

In a ferromagnetic heterostructure, the interplay between a Rashba spin-orbit coupling and an exchange field gives rise to a current-driven spin torque. In a realistic device setup, we investigate the Rashba spin torque in the diffusive…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Christian Ortiz Pauyac , Xuhui Wang , Mairbek Chshiev , Aurelien Manchon

The Rashba effect, a spin splitting in electronic band structure, attracts much attention for the potential applications in spintronics with no requirement of external magnetic field. Realizing one-dimensional (1D) Rashba system is a big…

Computational Physics · Physics 2017-08-14 Zhenzhen Qin , Guangzhao Qin , Bin Shao , Xu Zuo

A microscopic expression of the residual electrical resistivity tensor is derived in linear response theory for Rashba electrons scattering at a magnetic impurity with cylindrical or non-cylindrical potential. The behavior of the…

Mesoscale and Nanoscale Physics · Physics 2016-09-29 Juba Bouaziz , Samir Lounis , Stefan Blügel , Hiroshi Ishida

The advent of milli-kelvin scanning tunneling microscopes (STM) with inbuilt magnetic fields has opened access to the study of magnetic phenomena with atomic resolution at surfaces. In the case of single atoms adsorbed on a surface, the…

Mesoscale and Nanoscale Physics · Physics 2012-06-19 Jean-Pierre Gauyacq , Nicolas Lorente , Frederico Dutilh Novaes

Highly symmetric magnetic environments have been suggested to stabilize the magnetic information stored in magnetic adatoms on a surface. Utilized as memory devices such systems are subjected to electron tunneling and external magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 Christoph Hübner , Benjamin Baxevanis , Alexander Ako Khajetoorians , Daniela Pfannkuche

Spin-orbit coupling (SOC) combined with broken inversion symmetry play key roles in inducing Rashba effect. The combined spontaneous polarization and Rashba effect enable controlling a material's spin degrees of freedom electrically. In…

Materials Science · Physics 2023-05-09 Amreen Bano , Dan Thomas Major

We study the spin textures of a confined two-dimensional electron in inhomogeneous magnetic fields. These fields can either be external or effective fields due to a background magnetic texture in the plane in which the electron resides. By…

Mesoscale and Nanoscale Physics · Physics 2020-03-12 Amin Naseri , Shenglin Peng , Wenchen Luo , Jesko Sirker

Quasi--one dimensional edge channels are formed at the boundary of a two-dimensional electron system subject to a strong perpendicular magnetic field. We consider the effect of Rashba spin--orbit coupling, induced by structural inversion…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Marco G. Pala , Michele Governale , Ulrich Zülicke , Giuseppe Iannaccone

We present theoretical studies of the influence of spin orbit coupling on the spin wave excitations of the Fe monolayer and bilayer on the W(110) surface. The Dzyaloshinskii-Moriya interaction is active in such films, by virtue of the…

Mesoscale and Nanoscale Physics · Physics 2010-10-19 A. T. Costa , R. B. Muniz , S. Lounis , A. B. Klautau , D. L. Mills

Spintronics is aimed at active controlling and manipulating the spin degrees of freedom in semiconductor devices. A promising way to achieve this goal is to make use of the tunable Rashba effect that relies on the spin-orbit interaction…

We show that the pair spin-orbit interaction (PSOI) created by the Coulomb fields of interacting electrons leads to the appearance of an unconventional correlated electronic state in two-dimensional materials with the large Rashba effect.…

Strongly Correlated Electrons · Physics 2023-02-06 Yasha Gindikin , Vladimir A. Sablikov

We show that the interaction between a superconducting order parameter and the magnetic moment of an atomic cluster in a two-dimensional s-wave superconductor with Rashba spin-orbit coupling generates magnetic anisotropy that can be…

Mesoscale and Nanoscale Physics · Physics 2017-10-24 Eugene M. Chudnovsky

Spin-momentum locking is essential to the spin-split Fermi surfaces of inversion-symmetry broken materials, which are caused by either Rashba-type or Zeeman-type spin-orbit coupling (SOC). While the effect of Zeeman-type SOC on…

Relativistic density-functional-theory calculations of Bi(111) thin films are performed to revisit their band structure and that of macroscopic samples. The band structure of a our 39-bilayer film ($\sim$~15~nm) shows that (1) $\sim$9-nm…

Materials Science · Physics 2020-12-01 Marisol Alcantara-Ortigoza , Talat S. Rahman

We demonstrate that an equilibrium spin current in a 2D electron gas with Rashba spin-orbit interaction (Rashba medium) results in a mechanical torque on a substrate near an edge of the medium. If the substrate is a cantilever, the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 E. B. Sonin
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