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Spin-orbit coupling (SOC) emerging at the interfaces of superconducting magnetic tunnel junctions is at the heart of multiple unprecedented physical phenomena, covering triplet proximity effects induced by unconventional (spin-flip) Andreev…

Superconductivity · Physics 2025-02-19 Andreas Costa , Jaroslav Fabian

Magnetotunnelling spectroscopy of resonant tunnelling structures provides information on the nature of the two-dimensional electron gas in the well. We describe a model based on nonequilibrium Green's functions that allows for a…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 Goran Isić , Dragan Indjin , Vitomir Milanović , Jelena Radovanović , Zoran Ikonić , Paul Harrison

The electronic structure of Bi2Se3 is studied by angle-resolved photoemission and density functional theory. We show that the instability of the surface electronic properties, observed even in ultra-high-vacuum conditions, can be overcome…

We employ a path integral real time approach to compute the DC conductance and spin polarization for electrons transported across a ballistic Quantum Ring with Rashba spin-orbit interaction. We use a piecewise semiclassical approximation…

Mesoscale and Nanoscale Physics · Physics 2007-07-23 P. Lucignano , D. Giuliano , A. Tagliacozzo

An influence of spin-orbit interaction on the tunneling between two 2D electron layers is considered. Particular attention is addressed to the relation between the contribution of Rashba and Dresselhaus types. It is shown that without…

Other Condensed Matter · Physics 2009-11-13 I. V. Rozhansky , N. S. Averkiev

The spin-split states subject to Rashba spin-orbit coupling in two-dimensional systems have long been accepted as pointing inplane and perpendicular to the corresponding wave vectors. This is in general true for free electron model, but…

Mesoscale and Nanoscale Physics · Physics 2009-12-13 Ming-Hao Liu , Ching-Ray Chang

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…

The propagation of light in strongly coupled atomic media takes place through the formation of polaritons - hybrid quasi-particles resulting from a superposition of an atomic and a photonic excitation. Here we consider the propagation under…

Quantum Gases · Physics 2020-09-30 Johannes Lang , Darrick E. Chang , Francesco Piazza

We use polarization resolved Raman spectroscopy to demonstrate that for a 3D giant Rashba system the bulk plasmon collective mode can directly couple to the Raman response even in the long wavelength $\mathbf q \rightarrow 0$ limit.…

Strongly Correlated Electrons · Physics 2024-02-20 A. C. Lee , S. Sarkar , K. Du , H. -H. Kung , C. J. Won , K. Wang , S. -W. Cheong , S. Maiti , G. Blumberg

To an electron moving in free space an electric field appears as a magnetic field which interacts with and can reorient the electron spin. In semiconductor quantum wells this spin-orbit interaction seems to offer the possibility of…

We investigate three-dimensional rolled-up metamaterials containing optically active quantum wells and metal gratings supporting surface plasmon polarition resonances. Finite-difference time-domain simulations show that by matching the…

Materials Science · Physics 2011-09-09 Andreas Rottler , Stephan Schwaiger , Anuen Koitmäe , Detlef Heitmann , Stefan Mendach

The quasiparticle dynamics of the sheet plasmons in epitaxially grown graphene layers on SiC(0001) have been studied systematically as a function of temperature, intrinsic defects, influence of multilayers and carrier density. The opening…

Strongly Correlated Electrons · Physics 2010-08-06 C. Tegenkamp , H. Pfnuer , T. Langer , J. Baringhaus , H. W. Schumacher

Far infrared radiation absorption of a quantum dot with few electrons in an orthogonal magnetic field could monitor the crossover to the fully spin polarized state. A Rashba spin-orbit coupling can tune the energy and the spin density of…

Strongly Correlated Electrons · Physics 2009-11-11 P. Lucignano , B. Jouault , A. Tagliacozzo , B. L. Altshuler

We investigate the impact of spin torque and spin pumping on the surface magnon polariton dispersion in a antiferromagnetic insulator-semiconductor heterostructure. In the bilayer system, the surface magnon polaritons conventionally couple…

Mesoscale and Nanoscale Physics · Physics 2024-06-27 Vemund Falch , Jeroen Danon , Alireza Qaiumzadeh , Arne Brataas

Intrinsic and extrinsic spin Hall effects are considered together on an equal theoretical footing for the Rashba spin-orbit coupling in two-dimensional (2D) electron and hole systems, using the diagrammatic method for calculating the spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Wang-Kong Tse , S. Das Sarma

We present a bunch of novel phenomena stemming from the pair spin-orbit interaction (PSOI), which does not rely on structure inversion asymmetry but instead arises from Coulomb fields of interacting electrons in materials with a strong…

Superconductivity · Physics 2025-01-03 Yasha Gindikin , Alex Kamenev

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

The relativistic Rashba contribution to the spin-Hall effect in external electric and magnetic fields in Al and Pt was investigated. Schemes of edge accumulation of spins are proposed that take into account the flip of spins when they do…

Mesoscale and Nanoscale Physics · Physics 2025-10-27 Yu. N. Chiang , M. O. Dzyuba

Phonon polaritons in natural anisotropic crystals hold great promise for infrared nano-optics. However, the direct electrical control of these polaritons is difficult, preventing the development of active polaritonic devices. Here we…

Mesoscale and Nanoscale Physics · Physics 2022-06-24 Zhiyong Li , Zefeng Chen , Jingwen Ma , Xin Hu , Pan Wang , Yungui Ma , Jian-Bin Xu

We analyze one-dimensional photonic superlattices which alternate layers of air and a left-handed material. We assume Drude-type dispersive responses for the dielectric permittivity and magnetic permeability of the left-handed material.…

Other Condensed Matter · Physics 2015-05-13 E. Reyes-Gomez , A. Bruno-Alfonso , S. B. Cavalcanti , C. A. A. de Carvalho , L. E. Oliveira