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The presence of spin-orbit coupling drives the anomalous magnetotransport at oxide interfaces and forms the basis for numerous intriguing properties of these 2D electron systems, such as topologically protected phases or anti-localization.…

Strongly Correlated Electrons · Physics 2018-02-28 Patrick Seiler , Jone Zabaleta , Robin Wanke , Jochen Mannhart , Thilo Kopp , Daniel Braak

Chiral semiconductors such as elemental tellurium (Te) exhibit unconventional spin textures and large charge-to-spin conversion efficiencies, yet the influence of introducing elements on these properties remains underexplored. Here, we…

Materials Science · Physics 2025-03-10 Sonam Phuntsho

The interaction of oxygen with cobalt and cobalt-based alloys has been a very important topic in the field of spintronics as it leads to enhanced orbital anisotropy and interfacial Dzyaloshinskii-Moriya interaction (DMI), which are crucial…

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

Intrinsic and Rashba spin-orbit interactions in strained graphene is studied within the tight-binding (TB) approach. Dependence of Slater-Koster (SK) parameters of graphene on strain are extracted by fitting the \emph{ab initio} band…

Mesoscale and Nanoscale Physics · Physics 2019-02-08 H. Rezaei , A. Phirouznia

Spin-orbit interaction and structure inversion asymmetry in combination with magnetic ordering is a promising route to novel materials with highly mobile spin-polarized carriers at the surface. Spin-resolved measurements of the…

The spin orbit interaction plays a crucial role in diverse fields of condensed matter, including the investigation of Majorana fermions, topological insulators, quantum information and spintronics. In III V zinc blende semiconductor…

Mesoscale and Nanoscale Physics · Physics 2014-08-25 A. Sasaki , S. Nonaka , Y. Kunihashi , M. Kohda , T. Bauernfeind , T. Dollinger , K. Richter , J. Nitta

We outline a general mechanism for Orbital-selective Mott transition (OSMT), the coexistence of both itinerant and localized conduction electrons, and show how it can take place in a wide range of realistic situations, even for bands of…

Strongly Correlated Electrons · Physics 2009-03-24 Luca de' Medici , S. R. Hassan , Massimo Capone , Xi Dai

We show that oxygen vacancies at titanate interfaces induce a complex multiorbital reconstruction which involves a lowering of the local symmetry and an inversion of t2g and eg orbitals resulting in the occupation of the eg orbitals of Ti…

Strongly Correlated Electrons · Physics 2012-08-27 N. Pavlenko , T. Kopp , E. Y. Tsymbal , J. Mannhart , G. A. Sawatzky

Efficient manipulation of magnetic order with electric current pulses is desirable for achieving fast spintronic devices. The Rashba-Edelstein effect, wherein a spin polarization is electrically induced in noncentrosymmetric systems,…

Materials Science · Physics 2024-07-01 Leandro Salemi , Marco Berritta , Ashis K. Nandy , Peter M. Oppeneer

We use a perturbative approach to study the effects of interfacial spin-orbit coupling in magnetic multilayers by treating the two-dimensional Rashba model in a fully three-dimensional description of electron transport near an interface.…

Mesoscale and Nanoscale Physics · Physics 2017-10-04 Kyoung-Whan Kim , Kyung-Jin Lee , Jairo Sinova , Hyun-Woo Lee , M. D. Stiles

The role of orbital ordering on metal-insulator transition of transition-metal oxides is investigated by the cluster self-consistent field approach in the strong correlation regime. A clear dependence of the insulating gap on the orbital…

Strongly Correlated Electrons · Physics 2007-09-25 Dong-Meng Chen , Liang-Jian Zou

Recently, orbital-textures have been found in Rashba and topological insulator (TI) surface states as a result of the spin-orbit coupling (SOC). Here, we predict a $p_x/p_y$ orbital texture, in linear dispersive Dirac bands, arising at the…

Mesoscale and Nanoscale Physics · Physics 2019-08-22 Felipe Crasto de Lima , Gerson J. Ferreira , Roberto H. Miwa

The application of modern layer-by-layer growth techniques to transition-metal oxide materials raises the possibility of creating new classes of materials with rationally designed correlated electron properties. An important step toward…

Materials Science · Physics 2010-10-07 Myung Joon Han , Chris A. Marianetti , Andrew J. Millis

The iron-based superconductor FeSe$_{1-x}$Te$_{x}$ (FST) has recently gained significant attention as a host of two distinct physical phenomena: ($i$) Majorana zero modes which can serve as potential topologically protected qubits, and…

Strongly Correlated Electrons · Physics 2024-04-02 Minjae Kim , Sangkook Choi , Walber Hugo Brito , Gabriel Kotliar

We analyze the role of local geometry in the spin and orbital interaction in transition metal compounds with orbital degeneracy. We stress that the tendency observed for the most studied case (transition metals in O$_6$ octahedra with one…

Strongly Correlated Electrons · Physics 2016-04-12 D. I. Khomskii , K. I. Kugel , A. O. Sboychakov , S. V. Streltsov

We investigate the effect of strong interactions on the spectral properties of quantum wires with strong Rashba spin-orbit interaction in a magnetic field, using a combination of Matrix Product State and bosonization techniques. Quantum…

Strongly Correlated Electrons · Physics 2017-06-07 Georg W. Winkler , Martin Ganahl , Dirk Schuricht , Hans Gerd Evertz , Sabine Andergassen

By applying dynamical mean-field theory in combination with exact diagonalization at zero temperature to a half-filled Hubbard model with two orbitals having distinct noninteracting densities of states, we show that an orbital selective…

Strongly Correlated Electrons · Physics 2016-03-17 Ze-Yi Song , Hunpyo Lee , Yu-Zhong Zhang

We derive a spin-orbital Hamiltonian for a triangular lattice of e_g orbital degenerate (Ni^{3+}) transition metal ions interacting via 90 degree superexchange involving (O^{2-}) anions, taking into account the on-site Coulomb interactions…

Strongly Correlated Electrons · Physics 2009-11-11 Albert J. W. Reitsma , Louis F. Feiner , Andrzej M. Oles'

Thickness driven electronic phase transitions are broadly observed in different types of functional perovskite heterostructures. However, uncertainty remains whether these effects are solely due to spatial confinement, broken symmetry or…

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