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Investigating the non-linear transport regime in a quantum dot heat engine described by the Anderson-Holstein model, it is shown that a finite electron-phonon interaction leads to a charge induced phonon generation that stimulates a phonon…

Mesoscale and Nanoscale Physics · Physics 2017-07-27 Bitan De , Bhaskaran Muralidharan

In material sciences, spectroscopic approaches combining ab initio calculations with experiments are commonly used to accurately analyze the experimental spectral data. Most state-of-the-art first-principle calculations are usually…

In this paper we investigate the spin-current and its shot-noise spectrum in a single-molecule quantum dot coupled with a local phonon mode. We pay special attention on the effect of phonon on the quantum transport property. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Hui Yu , J. -Q. Liang

A theory of magnetophonon resonance in quantum wells in a magnetic field tilted to the perpendicular to 2DEG is developed. The resonance is due to the resonant interaction of 2D conduction electrons with the longitudinal optic phonons. The…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 V. V. Afonin , V. L. Gurevich , R. Laiho

The all-temperature magnon (ATM) theory [J. Phys. Condens. Matter 21, 336003/1-14, 2009] has been used to analyze the temperature dependence of magnetization as well as the internal energy components of a mono-domain ferromagnetic solid.…

Materials Science · Physics 2023-06-30 Sambhu N. Datta

Using an exact nonequilibrium Green's function formulism, the phonon Hall effect for paramagnetic dielectrics is studied in a four-terminal device setting. The temperature difference in the transverse direction of the heat current is…

Mesoscale and Nanoscale Physics · Physics 2009-11-23 Lifa Zhang , Jian-Sheng Wang , Baowen Li

In this work we present the results of an inelastic x-ray scattering experiment detailing the behavior of the transverse acoustic [110] phonon in BaFe2As2 as a function of temperature. When cooling through the structural transition…

Superconductivity · Physics 2012-01-04 Jennifer L. Niedziela , D. Parshall , K. A. Lokshin , A. S. Sefat , A. Alatas , T. Egami

We report a Raman study of the effect of temperature on the self-energies of optical phonons in a number of transition metals with hexagonal-close-packed structure. Anisotropic softening of phonon energies and narrowing of phonon linewidths…

Materials Science · Physics 2017-01-04 Yu. S. Ponosov , S. V. Streltsov

We numerically investigate a condensate of $^{87}$Rb atoms in an F=1 hyperfine state confined in an optical dipole trap. Assuming the magnetic moments of all atoms are initially aligned along the magnetic field we observe, after the field's…

Other Condensed Matter · Physics 2007-09-26 Krzysztof Gawryluk , Mirosław Brewczyk , Kai Bongs , Mariusz Gajda

The presence of spin-polarized charge carriers in metallic magnets provides a mechanism for spin-lattice interactions mediated by electron-phonon coupling. Here, we present a theory of this mechanism used to estimate its effect on the…

Materials Science · Physics 2024-08-20 Danis I. Badrtdinov , Mikhail I. Katsnelson , Alexander N. Rudenko

In this study, we investigate the phonon antibunching effect in a coupled nonlinear micro/nanoelectromechanical system (MEMS/NEMS) resonator at a finite temperature. In the weak driving limit, the optimal condition for phonon antibunching…

Quantum Physics · Physics 2017-11-23 Shengguo Guan , Warwick Bowen , Cunjin Liu , Zhenglu Duan

In ionic materials, circularly polarized phonons carry orbital magnetic moments that arise from circular motions of the ions, and which interact with other magnetic moments or fields. Here, we calculate the orbital magnetic moments of…

Materials Science · Physics 2019-06-12 Dominik M. Juraschek , Nicola A. Spaldin

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

Nonzero mean value of phonon angular momentum (PAM) in chiral materials can be generated when a temperature gradient is applied. We find that both diagonal and off-diagonal terms of PAM contribute to mean PAM by using the Kubo formula where…

Mesoscale and Nanoscale Physics · Physics 2023-04-05 Jinxin Zhong , Hong Sun , Yang Pan , Zhiguo Wang , Xiangfan Xu , Lifa Zhang , Jun Zhou

In a growing list of insulators, experiments find that magnetic field induces a misalignment between the heat flux and the thermal gradient vectors. This phenomenon, known as the phonon thermal Hall effect, implies energy flow without…

Mesoscale and Nanoscale Physics · Physics 2025-10-01 Kamran Behnia

We study the thermodynamic properties of a neutral vector boson gas in presence of a constant magnetic field, by means of a semi-classical approach that allows to introduce the spin in the non-relativistic spectrum of the bosons.…

The thermopower and Nernst-Ettingshausen (NE) effect in degenerate semiconductors and semimetals placed in high electric and magnetic fields are calculated by taking into account the heating of both electrons and phonons as well as their…

Condensed Matter · Physics 2007-05-23 M. M. Babaev , T. M. Gassym , M. Tas , M. Tomak

Exact conservation of the angular momentum is worked out for an elastic medium with spins. The intrinsic anharmonicity of the elastic theory is shown to be crucial for conserving the total momentum. As a result, any spin-lattice dynamics…

Mesoscale and Nanoscale Physics · Physics 2021-04-07 Dmitry A. Garanin , Eugene M. Chudnovsky

We study the effect of phonons on a proposed scheme for the direct measurement of two-electron spin states in a double quantum dot by monitoring the the noise of the current flowing through a quantum point contact coupled to one of the…

Quantum Physics · Physics 2015-04-01 Katarzyna Roszak , Łukasz Marcinowski , Paweł Machnikowski

We demonstrate the polarization of electron orbital angular momentum (OAM) in neutral atoms by integrating the Zeeman effect with attosecond transient absorption spectroscopy (ATAS). Using density matrix simulations, we show that in a…

Atomic Physics · Physics 2025-07-04 Hongtao Hu , Sebastian Mai , Peng Peng , Andrius Baltuška , Xinhua Xie