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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

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

Due to its incommensurate nature, moir\'e superlattices host not only acoustic phonons but also another type of soft collective modes called phasons. Here, we investigate the impact of electron-phason scattering on the transport properties…

Mesoscale and Nanoscale Physics · Physics 2023-09-06 Héctor Ochoa , Rafael M. Fernandes

We have investigated the effect on phonon energy transport in mesoscopic systems and the reduction in the thermal conductance in the quantum limit due to phonon scattering by surface roughness using full 3-dimensional elasticity theory for…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 D. H. Santamore , M. C. Cross

We experimentally investigate the effect of electron temperature on transport in the two-dimensional Dirac surface states of the three-dimensional topological insulator HgTe. We find that around the minimal conductivity point, where both…

Using the weak-localization method, we have measured the electron-phonon scattering times $\tau_{ep}$ in Pd$_{60}$Ag$_{40}$ thick films prepared by DC- and RF-sputtering deposition techniques. In both series of samples, we find an anomalous…

Disordered Systems and Neural Networks · Physics 2009-05-05 Y. L. Zhong , J. J. Lin , L. Y. Kao

Based on the first-principles calculations, we study the electron-phonon scattering effect on the resistivity in the zirconium dichalcogenides, $\text{Zr}_{}\text{S}_{2}$ and $\text{Zr}_{}\text{Se}_{2}$, whose electronic band structures…

Materials Science · Physics 2022-01-05 Hitoshi Mori , Masayuki Ochi , Kazuhiko Kuroki

Transition-metal perovskite oxides exhibit moderately correlated metallic phases, several of which exhibit a $T^2$ resistivity scaling up to temperatures far exceeding the regime where Fermi-liquid electron-electron scattering is expected…

Materials Science · Physics 2026-04-02 Jennifer Coulter , Fabian B. Kugler , Harrison LaBollita , Antoine Georges , Cyrus E. Dreyer

We revisited the influence of electron-electron scattering on the resistivity of a two-dimensional system with linear spectrum. In conventional systems with parabolic spectrum, where Umklapp scattering is either prohibited or ineffective…

Mesoscale and Nanoscale Physics · Physics 2025-05-19 V. M. Kovalev , M. V. Entin , Z. D. Kvon , A. D. Levin , V. A. Chitta , G. M. Gusev , N. N. Mikhailov

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

First principles-based predictions of lattice thermal conductivity (TC) from perturbation theory have achieved significant success. Usually, it only included three-phonon (3ph) scattering processes, only recently four-phonon (4ph)…

Materials Science · Physics 2025-03-25 H. F. Feng , B. Liu , Xin-Gao Gong , Zhi-Xin Guo

The performance of silicon nano-devices at cryogenic temperatures is critical for quantum qubit control circuits and space applications. Using multi-valley Monte Carlo simulations, we investigate electron transport in Si~(110) systems. At…

Mesoscale and Nanoscale Physics · Physics 2026-03-27 Hsin-Wen Huang , Xi-Jun Fang , Edward Chen , Yuh-Renn Wu

We show that electron--electron scattering gives a positive contribution to the resistivity of ballistic multimode wires whose width is much smaller than their length. This contribution is not exponentially small at low temperatures and…

Mesoscale and Nanoscale Physics · Physics 2012-04-09 K. E. Nagaev , N. Yu. Sergeeva

We investigate the scattering of an electron by phonons in a small structure between two one-dimensional tight-binding leads. This model mimics the quantum electron transport through atomic wires or molecular junctions coupled to metallic…

Strongly Correlated Electrons · Physics 2017-02-27 C. Brockt , E. Jeckelmann

We show that near a quantum critical point generating quantum criticality of strongly correlated metals where the density of electron states diverges, the quasi-classical physics remains applicable to the description of the resistivity \rho…

Strongly Correlated Electrons · Physics 2013-09-12 V. R. Shaginyan , K. G. Popov , V. A. Khodel

Power dissipation has become a major obstacle in performance scaling of modern integrated circuits, and has spurred the search for devices operating at lower voltage swing. In this letter, we study p-i-n band-to-band tunneling field effect…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Siyuranga O. Koswatta , Mark S. Lundstrom , Dmitri E. Nikonov

The effects of very low temperature on the electron transport in a [110] and [100] axially aligned unstrained silicon nanowires (SiNWs) are investigated. A combination of semi-empirical 10-orbital tight-binding method, density functional…

Mesoscale and Nanoscale Physics · Physics 2025-01-03 Daryoush Shiri , Reza Nekovei , Amit Verma

Freely suspended metallic single-wall carbon nanotubes (SWNTs) exhibit reduced current carrying ability compared to those lying on substrates, and striking negative differential conductance (NDC) at low electric fields. Theoretical analysis…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Eric Pop , David Mann , Jien Cao , Qian Wang , Kenneth Goodson , Hongjie Dai

The discovery of an enhanced superconducting transition temperature $T_c$ in monolayers of FeSe grown on several oxide substrates has opened a new route to high-$T_c$ superconductivity through interface engineering. One proposal for the…

Superconductivity · Physics 2017-08-23 Yan Wang , Louk Rademaker , Elbio Dagotto , Steven Johnston

We consider a short-range deformation potential scattering model of electron-acoustic phonon interaction to calculate the resistivity of an ideal metal as a function of temperature (T) and electron density (n). We consider both 3D metals…

Strongly Correlated Electrons · Physics 2019-02-07 E. H. Hwang , S. Das Sarma
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