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We study the frequency-dependent magnetoconductivity of a strongly correlated nondegenerate 2D electron system in a quantizing magnetic field. We first restore the single-electron conductivity from calculated 14 spectral moments. It has a…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Frank Kuehnel , Leonid P. Pryadko , M. I. Dykman

The response of a 2D electron system to a DC measurement electric field has been investigated in the case when the system is driven out of the equilibrium by the magnetic ultra-high frequency field that leads to combined transitions…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 I. I. Lyapilin , A. E. Patrakov

The density of states of a 2D d-wave superconductor in the vortex state with applied magnetic field $\bf H$ in the plane is shown to exhibit fourfold oscillations as a function of the angle of the field with respect to the crystal axes. We…

Superconductivity · Physics 2007-05-23 I. Vekhter , P. J. Hirschfeld , J. P. Carbotte , E. J. Nicol

An anomalous (inverse) spin accumulation in the nonmagnetic spacer may build up when the spin valve consists of magnetic films having different spin symmetries. This leads to wavy-like dependence of spin-transfer torque on the angle between…

Mesoscale and Nanoscale Physics · Physics 2010-04-12 E. Jaromirska , P. Balaz , L. Lopez Diaz , J. Barnas

We present an experimental study of the microwave power and the linear polarization angle dependence of the microwave-induced magnetoresistance oscillations in the high-mobility GaAs/AlGaAs two-dimensional electron system. Experimental…

Mesoscale and Nanoscale Physics · Physics 2016-11-03 Tianyu Ye , Jesus Inarrea , W. Wegscheider , R. G. Mani

Non-linear magnetization dynamics is essential for the operation of many spintronics devices. For microwave assisted switching of magnetic elements the low field regime is of particular interest. In addition a large number of experiments…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Hans G. Bauer , Peter Majchrak , Torsten Kachel , Christian H. Back , Georg Woltersdorf

This paper reports on the observation and analysis of magnetotransport phenomena in the nonlinear differential resistance $r_{xx}=dV_{xx}/dI$ of high-mobility InGaAs/InP and GaAs/AlGaAs Hall bar samples driven by direct current, $\Idc$.…

Mesoscale and Nanoscale Physics · Physics 2012-09-04 S. A. Studenikin , G. Granger , A. Kam , A. S. Sachrajda , Z. R. Wasilewski , P. J. Poole

The frequency dependence of the peak-valley pairs occurring in the magnetoresistivity of a two-dimensional electron system under enhanced microwave irradiation, which are considered to associate with multiphoton processes, is examined in…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 X. L. Lei , S. Y. Liu

Nonlinear magneto-optical rotation is studied under non-equilibrium conditions. The polarization rotation of linearly polarized light traversing a rubidium vapor cell is observed versus the time-dependent (swept) longitudinal magnetic field…

Atomic Physics · Physics 2020-03-25 Raghwinder Singh Grewal , Szymon Pustelny

The recent discovery of the microwave induced vanishing resistance states in a two dimensional electron system (2DES) is an unexpected and surprising phenomena. In these experiments the magnetoresistance of a high mobility 2DES under the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Manuel Torres , Alejandro Kunold

Electromagnetic response of a finite-width two-dimensional electron stripe with attached metallic side contacts is theoretically studied. It is shown that contacts substantially influence the position, the linewidth, and the amplitude of…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 S. A. Mikhailov , N. A. Savostianova

We demonstrate that electron wave functions change their dimensionality at some commensurate directions of a magnetic field in conductors with open [quasi-one-dimensional (Q1D)] sheets of Fermi surface. These 1D -> 2D dimensional crossovers…

Superconductivity · Physics 2009-11-10 A. G. Lebed , Heon-Ick Ha , M. J. Naughton

When a beam of light is laterally confined, its field distribution can exhibit points where the local magnetic and electric field vectors spin in a plane containing the propagation direction of the electromagnetic wave. The phenomenon…

Optics · Physics 2018-05-23 Martin Neugebauer , Jörg Eismann , Thomas Bauer , Peter Banzer

The resistivities of the dilute, strongly-interacting 2D electron systems in the insulating phase of a silicon MOSFET are the same for unpolarized electrons in the absence of magnetic field and for electrons that are fully spin polarized by…

Strongly Correlated Electrons · Physics 2017-01-18 Shiqi Li , M. P. Sarachik

Recent experiment [S.I. Dorozhkin et al., Phys. Rev. Lett. 102, 036602 (2009)] on quantum Hall structures with strongly asymmetric contact configuration discovered microwave-induced photocurrent and photovoltage magnetooscillations in the…

Mesoscale and Nanoscale Physics · Physics 2009-09-28 I. A. Dmitriev , S. I. Dorozhkin , A. D. Mirlin

When magnetohydrodynamic turbulence evolves in the presence of a large-scale mean magnetic field, an anisotropy develops relative to that preferred direction. The well-known tendency is to develop stronger gradients perpendicular to the…

Plasma Physics · Physics 2020-07-15 Rohit Chhiber , William H. Matthaeus , Sean Oughton , Tulasi N. Parashar

We present a model to describe the nonlinear response to a direct dc current applied to a two-dimensional electron system in a strong magnetic field. The model is based on the solution of the von Neumann equation incorporating the exact…

Mesoscale and Nanoscale Physics · Physics 2010-09-21 A. Kunold , M. Torres

At low temperatures, in very clean two-dimensional (2D) samples the electron mean free path for collisions with static defects and phonons becomes greater than the sample width. Under this condition, the electron transport occurs by…

Mesoscale and Nanoscale Physics · Physics 2016-12-15 P. S. Alekseev

The response of two-dimensional electron gas to temperature gradient in perpendicular magnetic field under steady-state microwave irradiation is studied theoretically. The electric currents induced by temperature gradient and the…

Mesoscale and Nanoscale Physics · Physics 2015-05-25 O. E. Raichev

Theory of weak antilocalization is developed for high-mobility two-dimensional systems. Spin-orbit interaction of Rashba and Dresselhaus types is taken into account. Anomalous magnetoresistance is calculated in the whole range of…

Mesoscale and Nanoscale Physics · Physics 2010-12-30 L. E. Golub