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Related papers: Zeeman Spin-Splitting in the (010) $\beta$-Ga2O3 T…

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We investigate theoretically perturbations to the confining potential capable of lifting spin degeneracy in axially symmetric quasi-one-dimensional electron gases with the spin-orbit interaction. The role of two different types of…

Condensed Matter · Physics 2007-05-23 A. D. Bochevarov , K. Ilyenko

We suggest that electron spin resonance (ESR) experiment can be used as a probe of spinon excitations of hypothetical spin-liquid state of frustrated antiferromagnet in the presence of asymmetric Dzyaloshinskii-Moriya (DM) interaction. We…

Strongly Correlated Electrons · Physics 2012-07-27 R. Glenn , O. A. Starykh , M. E. Raikh

We investigated the Rashba spin splittings in a compressive-strained SrTiO$_3$(001) ultra thin-film using first-principles calculations. The effect of the polarization due to the compressive strain leads to the 2DEG with large Rashba spin…

Materials Science · Physics 2018-08-07 Naoya Yamaguchi , Fumiyuki Ishii

Energies and wave functions of edge states in twodimensional electron gas are evaluated for a finite step potential barrier model. The spectrum, instead of smooth bending of Landau branches in the vicinity of the barrier acquires a steplike…

Condensed Matter · Physics 2015-06-25 I. Bartos , B. Rosenstein

We quantify the effect of the spin-orbit interaction on the Rydberg-like series of image state electrons at the (111) and (001) surface of Ir, Pt and Au. Using relativistic multiple-scattering methods we find Rashba-like dispersions with…

Materials Science · Physics 2007-05-23 J R McLaughlan , E M Llewellyn-Samuel , S Crampin

We theoretically consider spin pumping in a junction between a ferromagnetic insulator (FI) and a two-dimensional electron gas (2DEG) in which the Rashba and Dresselhaus spin-orbit interactions coexist. Using second-order perturbation…

Mesoscale and Nanoscale Physics · Physics 2021-08-10 M. Yama , M. Tatsuno , T. Kato , M. Matsuo

We experimentally determine isotropic and anisotropic g-factor corrections in lateral GaAs single-electron quantum dots. We extract the Zeeman splitting by measuring the tunnel rates into the individual spin states of an empty quantum dot…

Mesoscale and Nanoscale Physics · Physics 2021-08-04 Leon C. Camenzind , Simon Svab , Peter Stano , Liuqi Yu , Jeramy D. Zimmerman , Arthur C. Gossard , Daniel Loss , Dominik M. Zumbühl

We present a detailed experimental and theoretical analysis of the spin dynamics of two-dimensional electron gases (2DEGs) in a series of n-doped GaAs/AlGaAs quantum wells. Picosecond-resolution polarized pump-probe reflection techniques…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 W. J. H. Leyland , G. H. John , R. T. Harley , M. M. Glazov , E. L. Ivchenko , D. A. Ritchie , A. J. Shields , M. Henini

We report on transport and capacitance measurements of graphene devices in magnetic fields up to 30 T. In both techniques, we observe the full splitting of Landau levels and we employ tilted field experiments to address the origin of the…

Mesoscale and Nanoscale Physics · Physics 2015-11-30 F. Chiappini , S. Wiedmann , K. S. Novoselov , A. Mishchenko , A. K. Geim , J. C. Maan , U. Zeitler

We report on transport experiments through high-mobility gate-tunable undoped InSb QWs. Due to the elimination of any Si modulation doping, the gate-defined two-dimensional electron gases in the quantum wells display a significantly…

Mesoscale and Nanoscale Physics · Physics 2021-10-22 Zijin Lei , Erik Cheah , Km Rubi , Maurice E. Bal , Christoph Adam , Rüdiger Schott , Uli Zeitler , Werner Wegscheider , Thomas Ihn , Klaus Ensslin

We present a magneto-infrared spectroscopy study on a newly identified three-dimensional (3D) Dirac semimetal ZrTe$_5$. We observe clear transitions between Landau levels and their further splitting under magnetic field. Both the sequence…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 R. Y. Chen , Z. G. Chen , X. -Y. Song , J. A. Schneeloch , G. D. Gu , F. Wang , N. L. Wang

Spin accumulation is generated by injecting an unpolarized charge current into a channel of GaAs two-dimensional electron gas subject to an in-plane magnetic field, then measured in a non-local geometry. Unlike previous measurements that…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 H. Ebrahimnejad , Y. Ren , S. M. Frolov , I. Adagideli , J. A. Folk , W. Wegscheider

We study the absorption spectrum of a two-dimensional electron gas (2DEG) in a magnetic field. We find that that at low temperatures, when the 2DEG is spin polarized, the absorption spectra, which correspond to the creation of spin up or…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 P. Plochocka-Polack , J. G. Groshaus , M. Rappaport , V. Umansky , Y. Gallais , A. Pinczuk , I. Bar-Joseph

We measure the spin splitting in a magnetic field $B$ of localized states in single-electron transistors using a new method, inelastic spin-flip cotunneling. Because it involves only internal excitations, this technique gives the most…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. Kogan , S. Amasha , D. Goldhaber-Gordon , G. Granger , M. A. Kastner , Hadas Shtrikman

Near band-gap photoluminescence and reflectivity in magnetic field are employed to determine the exchange-induced splitting of free exciton states in paramagnetic wurtzite Ga1-xMnxN, x < 1%, grown on sapphire substrates by metal-organic…

Materials Science · Physics 2014-02-04 J. Suffczynski , A. Grois , W. Pacuski , A. Golnik , J. A. Gaj , A. Navarro-Quezada , B. Faina , T. Devillers , A. Bonanni

The fully relativistic theory of the Zeeman splitting of the $(1s)^2 2s$ hyperfine-structure levels in lithiumlike ions with $Z=6 - 32$ is considered for the magnetic field magnitude in the range from 1 to 10 T. The second-order corrections…

Atomic Physics · Physics 2009-04-08 D. L. Moskovkin , V. M. Shabaev , W. Quint

In time-resolved Faraday rotation experiments we have detected an inplane anisotropy of the electron spin-dephasing time (SDT) in an $n$--modulation-doped GaAs/Al$_{0.3}$Ga$_{0.7}$As single quantum well. The SDT was measured with magnetic…

Materials Science · Physics 2007-08-15 D. Stich , J. H. Jiang , T. Korn , R. Schuh , D. Schuh , W. Wegscheider , M. W. Wu , C. Schüller

The Zeeman splitting of the conduction band in the HgTe quantum wells both with normal and inverted spectrum has been studied experimentally in a wide electron density range. The simultaneous analysis of the SdH oscillations in low magnetic…

Mesoscale and Nanoscale Physics · Physics 2018-07-11 G. M. Minkov , O. E. Rut , A. A. Sherstobitov , S. A. Dvoretski , N. N. Mikhailov

We experimentally study quantized conductance in an electrostatically defined constriction in a high-mobility InAs two-dimensional electron gas. A parallel magnetic field lifts the spin degeneracy and allows for the observation of plateaus…

The spin-structure functions $g_1$ and $g_2$, and the spin-dependent partial cross-section $\sigma_\mathrm{TT}$ have been extracted from the polarized cross-sections differences, $\Delta…

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