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We present a general theory of multiorbital spin waves in magnetically ordered metallic systems. Motivated by the itinerant magnetism of iron-based superconductors, we compare the magnetic excitations for two different scenarios: when the…

Superconductivity · Physics 2015-05-27 J. Knolle , I. Eremin , R. Moessner

Observational constraints on planet spin-axis has recently become possible, and revealed a system that favors a large spin-axis misalignment, a low stellar spin-orbit misalignment and a high eccentricity. To explain the origin of such…

Earth and Planetary Astrophysics · Physics 2021-07-07 Gongjie Li

Using a consistent quantum-mechanical treatment for the electromagnetic radiation, we theoretically investigate the magnetic spin-flip scatterings of a neutral two-level atom trapped in the vicinity of a superconducting body. We derive a…

Quantum Physics · Physics 2007-05-23 Per Kristian Rekdal , Bo-Sture K. Skagerstam , Ulrich Hohenester , Asier Eiguren

In one-dimensional electronic systems with strong repulsive interactions, charge excitations propagate much faster than spin excitations. Such systems therefore have an intermediate temperature range [termed the "spin-incoherent Luttinger…

Disordered Systems and Neural Networks · Physics 2017-01-11 S. A. Parameswaran , Sarang Gopalakrishnan

We derive the effective charge- and current-density operators for the strong-coupling limit of a single-band Mott insulator in the presence of spin-orbit coupling and show that the spin-orbit contribution to the effective charge density…

Strongly Correlated Electrons · Physics 2015-06-23 Shan Zhu , You-Quan Li , Cristian D. Batista

The behavior of a disordered amorphous thin film of superconducting Indium Oxide has been studied as a function of temperature and magnetic field applied perpendicular to its plane. A superconductor-insulator transition has been observed,…

Superconductivity · Physics 2017-12-29 Ilana M. Percher , Irina Volotsenko , Aviad Frydman , Boris I. Shklovskii , Allen M. Goldman

Investigation of elementary excitations has advanced our understanding of many-body physics governing most physical properties of matter. Recently spin-orbit excitons have drawn much attention, whose condensates near phase transitions…

Strongly Correlated Electrons · Physics 2019-07-24 A. Nag , S. Bhowal , M. Moretti Sala , A. Efimenko , I. Dasgupta , S. Ray

We explore the impact of a Rashba-type spin-orbit interaction in the conduction band on the spin dynamics of hot excitons in diluted magnetic semiconductor quantum wells. In materials with strong spin-orbit coupling, we identify parameter…

Mesoscale and Nanoscale Physics · Physics 2019-07-30 Florian Ungar , Pablo Ignacio Tamborenea , Vollrath Martin Axt

The interactions between holes in the Hubbard model, in the low density, intermediate to strong coupling limit, are investigated. Dressed spin polarons in neighboring sites have an increased kinetic energy and an enhanced hopping rate. Both…

Strongly Correlated Electrons · Physics 2009-10-31 E. Louis , F. Guinea , M. P. Lopez Sancho , J. A. Verges

We have incorporated spin-orbit coupling into the Aubry-Andre model of tight-binding electron motion in the presence of periodic potential with a period incommensurate with lattice constant. This model is known to exhibit an insulator-metal…

Mesoscale and Nanoscale Physics · Physics 2018-07-04 Rajesh. K. Malla , M. E. Raikh

We utilize an exact variational numerical procedure to calculate the ground state properties of a polaron in the presence of a Rashba-like spin orbit interaction. Our results corroborate with previous work performed with the Momentum…

Strongly Correlated Electrons · Physics 2011-07-11 Zhou Li , L. Covaci , M. Berciu , D. Baillie , F. Marsiglio

Despite the fact that the problem of interference mechanism of magnetoresistance in semiconductors with hopping conductivity was widely discussed, most of existing studies were focused on the model of spinless electrons. This model can be…

Disordered Systems and Neural Networks · Physics 2015-06-03 A. V. Shumilin , V. I. Kozub

The interplay of Anderson localization and electron-electron interactions is known to lead to enhancement of superconductivity due to multifractality of electron wave functions. We develop the theory of multifractally-enhanced…

Superconductivity · Physics 2022-11-23 E. S. Andriyakhina , I. S. Burmistrov

We study spin conductance in a ballistic and quasi-ballistic two dimensional electron system with Rasbha spin-orbit coupling. The system has a four-terminal geometry with round corners at the connection to the leads. It is found that by…

Mesoscale and Nanoscale Physics · Physics 2011-11-08 Gunnar Thorgilsson , Sigurdur I. Erlingsson

The longitudinal components of orthogonal-circularly polarized fields carry a phase singularity that changes sign depending on the polarization handedness. The addition of orbital angular momentum adds to or cancels this singularity and…

In 2D systems with a spin-orbit interaction, magnetic focussing can be used to create a spatial separation of particles with different spin. Here we measure hole magnetic focussing for two different magnitudes of the Rashba spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2023-01-25 M. J. Rendell , S. D. Liles , A. Srinivasan , O. Klochan , I. Farrer , D. A. Ritchie , A. R. Hamilton

The influence of a uniform external magnetic field on the dynamical spin response of cuprate superconductors in the superconducting state is studied based on the kinetic energy driven superconducting mechanism. It is shown that the magnetic…

Superconductivity · Physics 2008-11-05 Jingge Zhang , Li Cheng , Huaiming Guo , Shiping Feng

Transport studies of a bent quantum Hall junction at integer filling factors show strongly insulating states at higher fields. In this paper we analyze the strongly insulating behavior as a function of temperature T and dc bias V, in order…

Mesoscale and Nanoscale Physics · Physics 2008-07-15 L. Steinke , D. Schuh , M. Bichler , G. Abstreiter , M. Grayson

In the presence of spin-orbit interactions, the steady state established for spin distributions in an electric field is qualitatively different from the steady state for charge distributions. This is primarily because the steady state…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Dimitrie Culcer , Roland Winkler

A model for magnetoresistance in positionally disordered organic materials is presented and solved using percolation theory. The model describes the effects of spin flips on hopping transport by considering the effect of spin dynamics on an…

Disordered Systems and Neural Networks · Physics 2012-05-02 N. J. Harmon , M. E. Flatté