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Related papers: Magneto-spatial dispersion of quantum wells

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We investigate the magnetohydrodynamics in the presence of an external magnetic field following the power-law decay in proper time and having spatial inhomogeneity characterized by a Gaussian distribution in one of transverse coordinates…

Nuclear Theory · Physics 2016-04-20 Shi Pu , Di-Lun Yang

We have directly demonstrated that homogeneous photoexcitation of a quantum well in presence of uniform tilted magnetic field gives rise to a set of bypass in-plane electric currents of a different value which may flow even in the opposite…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 S. A. Emelyanov

We demonstrate the epitaxial growth of optical-quality electrically-gated III-V ferromagnetic quantum structures. Photoluminescence spectroscopy reveals that initially unpolarized photoexcited holes in a GaAs quantum well become…

Materials Science · Physics 2007-05-23 R. C. Myers , A. C. Gossard , D. D. Awschalom

We report on the observation of linear and circular magnetogyrotropic photogalvanic effects in InSb/AlInSb quantum well structures. We show that intraband (Drude-like) absorption of terahertz radiation in the heterostructures causes a dc…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 S. Stachel , P. Olbrich , C. Zoth , U. Hagner , T. Stangl , C. Karl , P. Lutz , V. V. Bel'kov , S. K. Clowes , T. Ashley , A. M. Gilbertson , S. D. Ganichev

The quantum Hall effect emerges when two-dimensional samples are subjected to strong magnetic fields at low temperatures: Topologically protected edge states cause a quantized Hall conductivity in multiples of $e^2/h$. Here we show that the…

Strongly Correlated Electrons · Physics 2024-10-11 Börge Göbel , Ingrid Mertig

The electric-field-induced resonant spin polarization of a two-dimensional hole gas described by Luttinger Hamiltonian with structural inversion asymmetry and Zeeman splitting in a perpendicular magnetic field was studied. The spin…

Mesoscale and Nanoscale Physics · Physics 2007-10-10 Tianxing Ma

Radiative corrections of quantum electrodynamics cause a vacuum threaded by magnetic field to be birefringent. This means that radiation of different polarizations travels at different speeds. Even in the strong magnetic fields of…

High Energy Astrophysical Phenomena · Physics 2018-07-19 Jeremy Heyl , Ilaria Caiazzo

Magnetophonon resonance in quantum wells in a tilted magnetic field B is investigated. Measurements of the Hall coefficient and correspondingly of the carrier concentration as a functions of magnetic field and temperature are simultaneously…

Strongly Correlated Electrons · Physics 2007-05-23 V. V. Afonin , V. L. Gurevich , R. Laiho , M. O. Safonchik , M. A. Shakhov , M. L. Shubnikov

This paper reviews the spin orientation of spin-3/2 holes in quantum wells. We discuss the Zeeman and Rashba spin splitting in hole systems that are qualitatively different from their counterparts in electron systems. We show how a…

Mesoscale and Nanoscale Physics · Physics 2008-11-12 R. Winkler , Dimitrie Culcer , S. J. Papadakis , B. Habib , M. Shayegan

Magnetotransport measurements on two-dimensional electrons confined to wide GaAs quantum wells reveal a remarkable evolution of the ground state at filling factor $\nu=1/2$ as we tilt the sample in the magnetic field. Starting with a…

Mesoscale and Nanoscale Physics · Physics 2015-06-08 Sukret Hasdemir , Yang Liu , H. Deng , M. Shayegan , L. N. Pfeiffer , K. W. West , K. W. Baldwin

We explore a regime of unipolar electronic transport in a multiple quantum well structure with very large current discontinuities - up to five orders of magnitude. Magneto-transport experiments reveal different transport regimes. Quantum…

Materials Science · Physics 2009-11-13 A. Gomez , V. Berger , N. Pere-Laperne , L. A. De Vaulchier

We discuss magnetoexcitons dispersion in single and coupled $GaAs-(Ga,Al)As$ quantum wells using the Bethe-Salpeter (B-S) formalism. The B-S formalism in the case of quantum wells provides an equation for the exciton wave function which…

Materials Science · Physics 2008-11-22 Z. G. Koinov

We report a theoretical study of light diffraction by a spherical magnetic particle with a vortex magnetization distribution. It is shown that the intensity of the diffracted light involves a non-reciprocal contribution. This contribution…

Optics · Physics 2015-06-12 Evgeny Karashtin

In the present paper we study magneto-intersubband oscillations (MISO) in HgTe/Hg$_{1-x}$Cd$_x$Te single quantum well with "inverted" and "normal" spectra and in conventional In$_{1-x}$Ga$_x$As/In$_{1-y}$Al$_y$As quantum wells with normal…

Transport properties of highly mobile 2D electrons are studied in symmetric GaAs quantum wells placed in titled magnetic fields. Quantum positive magnetoresistance (QPMR) is observed in magnetic fields perpendicular to the 2D layer.…

Mesoscale and Nanoscale Physics · Physics 2016-11-29 William Mayer , Areg Ghazaryan , Pouyan Ghaemi , Sergey Vitkalov , A. A. Bykov

Weak antilocalization is studied in an InGaAs quantum well. Anomalous magnetoresistance is measured and described theoretically in fields perpendicular, tilted and parallel to the quantum well plane. Spin and phase relaxation times are…

Mesoscale and Nanoscale Physics · Physics 2010-12-30 G. M. Minkov , A. V. Germanenko , O. E. Rut , A. A. Sherstobitov , L. E. Golub , B. N. Zvonkov , M. Willander

Here it is shown that a radial magnetic field leads to rotation of a Bose condensed exciton cloud due to Aharonov-Bohm effect for an electron and a hole forming an exciton. As in the case of mechanical rotation of superfluids, rotation is…

Other Condensed Matter · Physics 2015-05-13 E. B. Sonin

The magnetic field is one of the most important constituents of the cosmic space and one of the main sources of the dynamics of interacting matter in the universe. The astronomical observations imply the existence of a strong magnetic…

General Relativity and Quantum Cosmology · Physics 2015-06-03 Juhua Chen , Hao Liao , Yongjiu Wang

Asymmetric magnetization reversal is an unusual phenomenon in antiferromagnet / ferromagnet (AF/FM) exchange biased bilayers. We investigated this phenomenon in a simple model system experimentally and by simulation assuming inhomogeneously…

Materials Science · Physics 2009-11-11 Zhi-Pan Li , Oleg Petracic , Rafael Morales , Justin Olamit , Xavier Batlle , Kai Liu , Ivan K. Schuller

Recent magneto-transport experiments of holes in InGaAs quantum dots [D. Reuter, P. Kailuweit, A.D. Wieck, U. Zeitler, O. Wibbelhoff, C. Meier, A. Lorke, and J.C. Maan, Phys. Rev. Lett. 94, 026808 (2005)] are interpreted by employing a…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. I. Climente , J. Planelles , M. Pi , F. Malet