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Related papers: Spin-orbit torques in a Rashba honeycomb antiferro…

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Strong interest has arisen recently on low-dimensional systems with strong spin-orbit interaction due to their peculiar properties of interest for some spintronic applications. Here, the time evolution of the electron spin polarization of a…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 C. Grimaldi

Inversion symmetry is a key symmetry in unconventional superconductors and even its local breaking can have profound implications. For inversion-symmetric systems, there is a competition on a microscopic level between the spin-orbit…

Superconductivity · Physics 2021-08-11 Anastasiia Skurativska , Manfred Sigrist , Mark H. Fischer

Strength of Rashba type antisymmetric spin orbit coupling has the crucial effect on superconducting and normal state properties in noncentrosymmetric (NCS) superconductors. This can be seen on various anisotropic properties of the system.…

Superconductivity · Physics 2014-03-03 Bhanu Joshi , A. Thamizhavel , S. Ramakrishnan

We investigate the efficiency of charge-to-spin conversion in two-dimensional Rashba altermagnets, a class of materials that merge characteristics of both ferromagnets and antiferromagnets. Utilizing quantum linear response theory, we…

Mesoscale and Nanoscale Physics · Physics 2024-09-11 Weiwei Chen , Longhai Zeng , W. Zhu

We determine theoretically the effect of spin-orbit coupling on the magnetic excitation spectrum of itinerant multi-orbital systems, with specific application to iron-based superconductors. Our microscopic model includes a realistic…

Superconductivity · Physics 2018-07-24 Daniel D. Scherer , Brian M. Andersen

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

We find that the Rashba spin splitting is intrinsically a nonlinear function of the momentum, and the linear Rasha model may overestimate it significantly, especially in narrow-gap materials. A nonlinear Rashba model is proposed, which is…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 W. Yang , Kai Chang

We consider a two-dimensional system of harmonically trapped particles with pseudo-spin-$\frac{1}{2}$ degree of freedom. This degree of freedom is coupled to the particle's momentum via the so-called Rashba spin-orbit interaction. We…

We study spin torques induced by Rashba spin-orbit coupling in two-dimensional ferromagnets under the good-metal condition $\epsilon_{F}\tau/\hbar\gg1$ ($\epsilon_{F}$ the Fermi energy, $\tau$ the electron lifetime) by employing the Kubo…

Mesoscale and Nanoscale Physics · Physics 2017-07-21 Cong Xiao , Qian Niu

Electric field induced spin-orbit torques are the crucial mechanism for electric regulations of antiferromagnetic order. However, the spin-orbit torques in antiferromagnets and the induced spin dynamics remain largely unexplored. In this…

Materials Science · Physics 2025-12-12 Yizhuo Song , Jianting Dong , Jiahao Shentu , Jia Zhang

Inversion asymmetry, combined with spin-orbit interaction, leads to Rashba or Dresselhaus effects, or combinations of them that are promising for technologies based on antiferromagnetic spintronics. Since understanding the exact nature of…

Materials Science · Physics 2025-02-12 Nirmal Ganguli , Avishek Singh , Vivek Kumar , Jayita Chakraborty

We suggest coherent switching of canted antiferromagnetic (AFM) spins using spin-orbit torque (SOT) in small magnet. The magnetic system of orthoferrite features biaxial easy anisotropy and the Dzyaloshinskii Moriya interaction, which is…

Materials Science · Physics 2021-08-18 T. H. Kim , S. Hwang , S. Y. Hamh , S. H. Yoon , S. H. Han , B. K. Cho

Motivated by the discovery of superconductivity in KTaO3-based heterostructures, we study a pairing mechanism based on spin-orbit assisted coupling between the conduction electrons and the ferroelectric modes present in the material. We use…

We study the pseudospin and spin dynamical effects in single-layer silicene due to a perpendicular electric field periodically driven and its interplay with the intrinsic and extrinsic (Rashba) spin-orbit interaction. We find that the spin…

Mesoscale and Nanoscale Physics · Physics 2018-08-15 Alexander Lopez , Francisco Mireles , John Schliemann , Benjamin Santos

Peculiarities observed in the field dependencies of the magnetic torque in k-(BETS)2Mn[N(CN)2]3 measured at T=1.5K, H=0-150kOe, have been explained from the viewpoint of the two interacting spin subsystems, one associated with d-electron…

Strongly Correlated Electrons · Physics 2016-02-18 O. M. Vyaselev , S. V. Simonov , N. D. Kushch , M. V. Kartsovnik , W. Biberacher

Within the Hartree Fock- RPA analysis, we derive the spin wave spectrum for the weak ferromagnetic phase of the Hubbard model on the honeycomb lattice. Assuming a uniform magnetization, the polar (optical) and acoustic branches of the spin…

Strongly Correlated Electrons · Physics 2007-05-23 M A N Araujo , N M R Peres

We consider the time evolution of the magnetization in a Rashba spin-orbit-coupled Fermi gas, starting from a fully-polarized initial state. We model the dynamics using a Boltzmann equation, which we solve in the Hartree-Fock approximation.…

Quantum Gases · Physics 2014-03-12 Juraj Radic , Stefan S. Natu , Victor Galitski

We calculate orbital spin-dependent magnetization in a two-dimensional electron gas with spin-orbit interaction of Rashba type. Such an orbital magnetization is admitted by the time-reversal symmetry of the system, and gives rise to spin…

Mesoscale and Nanoscale Physics · Physics 2016-11-09 A. Dyrdał , V. K. Dugaev , J. Barnaś

We address the nature of spin-orbit torques at the magnetic surfaces of topological insulators, using both Kubo formula and Keldysh formalism. Through the analysis of the derived spin-charge equations, we find that the so-called Dirac…

Mesoscale and Nanoscale Physics · Physics 2017-07-11 P. B. Ndiaye , C. A. Akosa , M. H. Fischer , A. Vaezi , E-A. Kim , A. Manchon

Recent studies using Terahertz Time-Domain Spectroscopy (THz-TDS) with spintronic emitters as a source have revealed distinct signatures of the Rashba effect. This effect, which arises from the breaking of inversion symmetry in…