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Related papers: Magnetoroton scattering by phonons in the fraction…

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We describe a theoretical framework for the interpretation of time-resolved phonon absorption experiments carried out in the fractional quantum Hall regime of a magnetically quantized two-dimensional electron system (2des). The only phonons…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Keith A. Benedict , R. K. Hills , C. J. Mellor

We study the phonon-assisted process of dissociation of a magnetoroton, in a fractional quantum Hall liquid, into an unbound pair of quasiparticles. Whilst the dissociation is forbidden to first order in the electron-phonon interaction, it…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 V. M. Apalkov , M. E. Portnoi

Thermal radiative phenomena can be strongly influenced by the coupling of phonons and long-range electromagnetic fields at infrared frequencies. Typically employed macroscopic descriptions of thermal fluctuations tend to ignore atomistic…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 Prashanth S. Venkataram , Jan Hermann , Alexandre Tkatchenko , Alejandro W. Rodriguez

Effects of resonant acoustic phonon scattering on magnetoresistivity are examined in two-dimensional electron systems at low temperatures by using a balance-equation magnetotransport scheme direct controlled by the current. The…

Mesoscale and Nanoscale Physics · Physics 2008-05-13 X. L. Lei

Electron scattering by longitudinal acoustic phonons in a quantizing magnetic field is considered. Expressions for the scattering rate in a magnetic field tilted to the quantum well layers are derived. By analyzing these expressions, trends…

Mesoscale and Nanoscale Physics · Physics 2026-05-14 M. P. Telenkov , Yu. A. Mityagin

We investigate the time dependent thermal relaxation of a two-dimensional electron system in the fractional quantum Hall regime where ballistic phonons are used to heat up the system to a non-equilibrium temperature. The thermal relaxation…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 F. Schulze-Wischeler , U. Zeitler , M. Monka , F. Hohls , R. J. Haug , K. Eberl

We study the intrinsic scattering of phonons by a general quantum degree of freedom, i.e. a fluctuating "field" $Q$, which may have completely general correlations, restricted only by unitarity and translational invariance. From the induced…

Strongly Correlated Electrons · Physics 2023-01-04 Léo Mangeolle , Leon Balents , Lucile Savary

The electron scattering with longitudinal polar optical phonons in a quantizing magnetic field tilted to the plane of quantum well layers is studied. The scattering rate's behavior at variation of the magnetic field magnitude and…

Mesoscale and Nanoscale Physics · Physics 2025-06-23 M. P. Telenkov , Yu. A. Mityagin , D. S. Korchagin

One of the most distinctive features of graphene is its huge inter-Landau-level splitting in experimentally attainable magnetic fields which results in the room-temperature quantum Hall effect. In this paper we calculate the longitudinal…

Mesoscale and Nanoscale Physics · Physics 2015-12-07 A. M. Alexeev , R. R. Hartmann , M. E. Portnoi

The magnetization response of bulk ferromagnets after excitation by an ultrashort optical pulse is calculated using a dynamical model of the Elliott-Yafet type that includes the effects of the spin-orbit interaction in the ab-initio…

Materials Science · Physics 2015-06-03 Sven Essert , Hans Christian Schneider

Polar phonons can induce electric fields in an adjacent layer, whether non-polar or polar, producing remote phonon scattering of electrons. Treatment of remote phonon scattering has been based on the dielectric continuum model which takes…

Materials Science · Physics 2020-04-15 A. Dyson , B. K. Ridley

A theory for the relaxation rates of a test electron and electron temperature in quantum wires due to deformation, piezoelectric acoustical and polar optical phonon scattering is presented. We represent intra- and inter-subband relaxation…

Materials Science · Physics 2007-05-23 Mher M. Aghasyan , Samvel M. Badalyan , Garnett W. Bryant

We study electron-acoustic phonon scattering and electron relaxation in quantum rings in the absence and in the presence of external magnetic fields. Electron-phonon interaction is accounted for both the deformation potential and…

Other Condensed Matter · Physics 2007-05-23 G. Piacente , G. Q. Hai

The influence of electron-phonon interaction on magnetotransport in two-dimensional electron systems under microwave irradiation is studied theoretically. Apart from the phonon-induced resistance oscillations which exist in the absence of…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 O. E. Raichev

We apply the magneto-roton theory of the fractional quantum Hall effect to study the collective excitation spectrum of rotating dipolar Fermi gases. The predicted spectrum has a finite energy gap in the long wavelength limit and a roton…

Mesoscale and Nanoscale Physics · Physics 2008-08-22 Szu-Cheng Cheng

Recent experiments have established a qualitative difference between the magnetization temperature-dependences $M(T)$ of quantum Hall ferromagnets at integer and fractional filling factors. We explain this difference in terms of the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. H. MacDonald , J. J. Palacios

The room temperature thermal diffusivity of high T$_c$ materials is dominated by phonons. This allows the scattering of phonons by electrons to be discerned. We argue that the measured strength of this scattering suggests a converse…

Strongly Correlated Electrons · Physics 2021-07-27 Connie H. Mousatov , Sean A. Hartnoll

In the present study we address the kinetics of long-lived excitations at zero temperature in an electronic quantum Hall system with filling factor $\nu=2$. The initial coherent state of spin-cyclotron magnetoexitons with two-dimensional…

Strongly Correlated Electrons · Physics 2021-12-01 S. Dickmann , B. D. Kaysin

Because electrons and ions form a coupled system, it is a priori clear that the dynamics of the lattice should reflect symmetry breaking within the electronic degrees of freedom. This has been recently clearly evidenced for the case of…

Strongly Correlated Electrons · Physics 2023-03-03 Léo Mangeolle , Leon Balents , Lucile Savary

We present a theoretical study of electron-phonon scattering effects in thin films made of a strong topological insulator. Phonons are modelled by isotropic elastic continuum theory with stress-free boundary conditions, and the interaction…

Mesoscale and Nanoscale Physics · Physics 2012-01-26 Sébastien Giraud , Arijit Kundu , Reinhold Egger
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