نتایج جستجو برای: rashba effect
تعداد نتایج: 1642853 فیلتر نتایج به سال:
We investigate the transport properties of a graphene layer in the presence of Rashba spin-orbit interaction. Quite generally, spin-orbit interactions induce spin splittings and modifications of the graphene band structure. We calculate within the scattering approach the linear electric and thermoelectric responses of a clean sample when the Rashba coupling is localized around a finite region. ...
The quasiclassical theory in terms of equations for the Green’s functions (Eilenberger equations) is generalized in order to allow for quantitative description of the magneto-electric effects and proximity-induced triplet correlations in the presence of spin-orbit coupling in hybrid superconducting systems. The formalism is valid under the condition that the spin-orbit coupling is weak with res...
We discuss the combined effect of Rashba and Dresselhaus spin-orbit interactions in polygonal loops formed by quantum wires, when the electron are injected in a node and collected at the opposite one. The conditions that allow perfect localization zero transmission coefficient are found. Furthermore, we investigate the suppression of the transmission coefficient oscillations that appear, in the...
We study the Josephson effect between two noncentrosymmetric superconductors (NCSs) with opposite polarization vectors of Rashba spin–orbit coupling (RSOC). We find a 0–π transition driven by the triplet–singlet ratio of NCSs. Different from conventional 0–π transitions, the Andreev bound states change their energy range instead of phase shift in the 0–π transition found here. This novel proper...
C. Tournier-Colletta,1,* G. Autès,2 B. Kierren,3 Ph. Bugnon,1 H. Berger,1 Y. Fagot-Revurat,3 O. V. Yazyev,2 M. Grioni,1 and D. Malterre3 1Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland 2Institute of Theoretical Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland 3Institut Jean Lamour, Unités Mixtes de R...
Within an effective Dirac theory the low-energy dispersions of monolayer graphene in the presence of Rashba spin-orbit coupling and spin-degenerate bilayer graphene are described by formally identical expressions. We explore implications of this correspondence for transport by choosing chiral tunneling through pn and pnp junctions as a concrete example. A real-space Green’s function formalism b...
The paper reviews the interplay of Rashba/Dresselhaus spin splittings in various two-dimensional systems made of zincblende III–V, wurtzite, and SiGe semiconductors. We discuss the symmetry aspects of the linear and cubic in electron wavevector spin splitting in heterostructures prepared on (001)-, (110)-, (111)-, (113)-, (112)-, and (013)oriented substrates and address the requirements for sup...
We demonstrated gate voltage control of spin precession in InGaAs mesoscopic ring arrays based on Rashba spin orbit interaction (SOI). We employed 100 nm ALD Al2O3 and 150 nm sputtered SiO2 gate insulators combined with large and small ring arrays to compare the gate sensitivity for the spin precession. Al’tshuler-Aronov-Spivak (AAS) oscillations were clearly observed and the oscillation phases...
Sarang Gopalakrishnan,1,2 Austen Lamacraft,2,3 and Paul M. Goldbart4 1Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA 2Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106, USA 3Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA 4School of Physics, Georgia Institute of T...
V. Gnezdilov, 2 P. Lemmens, D. Wulferding, A. Möller, P. Recher, H. Berger, R. Sankar, and F. C. Chou Institute for Condensed Matter Physics, Technical University of Braunschweig, Mendelssohnstr. 3, D-38106 Braunschweig, Germany B. I. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, Kharkov 61103, Ukraine Department of Chemistry and Te...
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