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Related papers: Spin-Orbit Coupling and Magnetic Anisotropy in Iro…

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We theoretically investigate multiple-$Q$ spin textures, which are composed of superpositions of spin density waves with different wave numbers, for an effective spin model of centrosymmetric itinerant magnets. Our focus is on the interplay…

Strongly Correlated Electrons · Physics 2021-02-17 Satoru Hayami , Yukitoshi Motome

We develop a gauge-independent perturbation theory for the grand potential of itinerant electrons in two-dimensional tight-binding models in the presence of a perpendicular magnetic field. At first order in the field, we recover the result…

Mesoscale and Nanoscale Physics · Physics 2015-03-05 A. Raoux , F. Piéchon , J. N. Fuchs , G. Montambaux

We provide a general formulation of the spin-orbit coupling on a 2D curved surface. Considering the wide applicability of spin-orbit effect in spinor-based condensed matter physics, a general spin-orbit formulation could aid the study of…

Mesoscale and Nanoscale Physics · Physics 2024-01-18 Seng Ghee Tan , Che Chun Huang , Mansoor B. A. Jalil , Zhuobin Siu

We investigate the effect of spin-orbit coupling on the in-gap bound states localized at magnetic impurities in multi-band superconductors with unconventional (sign-changed) and conventional (sign-unchanged) $s$-wave pairing symmetry, which…

Superconductivity · Physics 2017-05-09 Kangjun Seo , Jay D. Sau , Sumanta Tewari

One of the principal models of magnetic sensing in migratory birds rests on the quantum spin-dynamics of transient radical pairs created photochemically in ocular cryptochrome proteins. We consider here the role of electron spin…

Biological Physics · Physics 2016-11-11 Hannah J. Hogben , Till Biskup , P. J. Hore

Two-dimensional orbital compass model is studied as an interacting itinerant electron model. A Hubbard-type tight-binding model, from which the orbital compass model is derived in the strong coupling limit, is identified. This model is…

Strongly Correlated Electrons · Physics 2015-05-30 J. Nasu , S. Ishihara

We study magnetic excitations in vanadium spinel oxides AV$_2$O$_4$ (A=Zn, Mg, Cd) using two models: first one is a superexchange model for vanadium S=1 spins, second one includes in addition spin-orbit coupling, and crystal anisotropy. We…

Strongly Correlated Electrons · Physics 2014-09-03 N. B. Perkins , O. Sikora

Using an exact diagonalization approach we show that one- and two-electron InAs quantum dots exhibit avoided crossing in the energy spectra that are induced by the spin-orbit coupling in the presence of an in-plane external magnetic field.…

Mesoscale and Nanoscale Physics · Physics 2011-07-01 M. P. Nowak , B. Szafran , F. M. Peeters , B. Partoens , W. Pasek

We propose a new mechanism for surface-induced magnetic anisotropy to explain the thickness-dependence of the Kondo resistivity of thin films of dilute magnetic alloys. The surface anisotropy energy, generated by spin-orbit coupling on the…

Strongly Correlated Electrons · Physics 2009-11-11 L. Szunyogh , G. Zarand , S. Gallego , M. C. Munoz , B. L. Gyorffy

Altermagnets, magnetic materials with zero magnetization and spin-split band structure, have gained tremendous attention recently for their rich physics and potential applications. Here, we report on a microscopic tight-binding model that…

Materials Science · Physics 2024-11-01 Marc Vila , Veronika Sunko , Joel E. Moore

We investigate the effective Lande factor in semiconductor nanowires with strong Rashba spin-orbit coupling. Using the $\mathbf{k}\cdot\mathbf{p}$ theory and the envelope function approach we derive a conduction band Hamiltonian where the…

Mesoscale and Nanoscale Physics · Physics 2024-01-17 J. Czarnecki , A. Bertoni , G. Goldoni , P. Wójcik

Magnetic atoms coupled to the Cooper pairs of a superconductor induce Yu-Shiba-Rusinov states (in short Shiba states). In the presence of sufficiently strong spin-orbit coupling, the bands formed by hybridization of the Shiba states in…

We study a three-orbital Hubbard-Kanamori model relevant for iron-based superconductors using variational wave functions explicitly including spatial correlations and electron pairing. We span the nonmagnetic sector from filling $n=4$,…

Strongly Correlated Electrons · Physics 2025-05-20 Vito Marino , Alberto Scazzola , Federico Becca , Massimo Capone , Luca F. Tocchio

We present analysis of the interacting quantum wire problem in the presence of magnetic field and spin-orbital interaction. We show that an interesting interplay of Zeeman and spin-orbit terms, facilitated by the electron-electron…

Mesoscale and Nanoscale Physics · Physics 2008-09-05 Suhas Gangadharaiah , Jianmin Sun , Oleg A. Starykh

We perform a theoretical study of the leading pairing instabilities and the associated superconducting gap functions within the spin-fluctuation mediated pairing scenario in the presence of spin-orbit coupling (SOC). Focussing on iron-based…

Superconductivity · Physics 2019-09-04 Daniel D. Scherer , Brian M. Andersen

In this study, we investigate the spin susceptibility in the superconducting state of a multilayer system with a layer-dependent Rashba spin-orbit coupling, representing a locally non-centrosymmetric superconductor. We show that the charge…

Superconductivity · Physics 2013-03-07 Daisuke Maruyama , Manfred Sigrist , Youichi Yanase

The effect of the spin-orbit coupling on the ground state properties of the square-lattice three-band Hubbard model with a single electron per site is studied by a generalized Hartree-Fock approximation. We calculate the full phase diagram…

Strongly Correlated Electrons · Physics 2024-09-30 Petr A. Igoshev , Danil E. Chizhov , Valentin Yu. Irkhin , Sergey V. Streltsov

We report the observation of tunneling anisotropic magnetoresistance effect (TAMR) in the epitaxial metal-semiconductor system Fe/GaAs/Au. The observed two-fold anisotropy of the resistance can be switched by reversing the bias voltage,…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 J. Moser , A. Matos-Abiague , D. Schuh , W. Wegscheider , J. Fabian , D. Weiss

We study the effect of the synthetic spin-orbit coupling in a two-component Bose-Hubbard model in one dimension by employing the density-matrix renormalization group method. A ferromagnetic long-range order emerges in both Mott insulator…

Strongly Correlated Electrons · Physics 2014-04-21 Jize Zhao , Shijie Hu , Jun Chang , Ping Zhang , Xiaoqun Wang

As nanomagnetic devices scale to smaller sizes, spin-orbit coupling due to the broken structural inversion symmetry at interfaces becomes increasingly important. Here we study interfacial spin-orbit coupling effects in magnetic bilayers…

Mesoscale and Nanoscale Physics · Physics 2013-11-26 Kyoung-Whan Kim , Hyun-Woo Lee , Kyung-Jin Lee , M. D. Stiles