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We develop a theory for density, disorder, and temperature dependent electrical conductivity of bilayer graphene in the presence of long-range charged impurity scattering as well as an additional short-range disorder of independent origin,…

Mesoscale and Nanoscale Physics · Physics 2010-04-21 S. Das Sarma , E. H. Hwang , E. Rossi

Electron scattering on unstable nuclei is planned in future facilities of the GSI and RIKEN upgrades. Motivated by this fact, we study theoretical predictions for elastic electron scattering in the N=82, N=50, and N=14 isotonic chains from…

Nuclear Theory · Physics 2013-01-10 X. Roca-Maza , M. Centelles , F. Salvat , X. Viñas

The effects of surface polar phonons on electronic transport properties of monolayer graphene are studied by using a Monte Carlo simulation. Specifically, the low-field electron mobility and saturation velocity are examined for different…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 X. Li , E. A. Barry , J. M. Zavada , M. Buongiorno Nardelli , K. W. Kim

We report on a study of the effect upon electrical transport of spinwave scattering from charged quasiparticles in nu=1 quantum Hall ferromagnets (QHFs), including both Heisenberg (single layer) and easy-plane (bilayer) cases. We derive a…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 A. G. Green , N. R. Cooper

A technique is developed which allows for the detailed mapping of the electronic wave function in two-dimensional electron gases with low-temperature mobilities up to 15E6 cm^2/Vs. Thin ("delta") layers of aluminium are placed into the…

Mesoscale and Nanoscale Physics · Physics 2015-12-09 Christian Reichl , Werner Dietsche , Thomas Tschirky , Timo Hyart , Werner Wegscheider

We have measured the low-field magnetoresistances (MRs) of a series of Sn-doped indium oxide thick films in the temperature $T$ range 4--35 K. The electron dephasing rate $1/\tau_{\varphi}$ as a function of $T$ for each film was extracted…

Mesoscale and Nanoscale Physics · Physics 2013-09-10 Yu-Jie Zhang , Zhi-Qing Li , Juhn-Jong Lin

We investigate the impact of threading dislocations with an edge component (a or a+c-type) on carrier recombination and diffusion in GaN(0001) layers close to the surface as well as in the bulk. To this end, we utilize cathodoluminescence…

In this article, we estimate hydrostatic stress developed in gallium ion implanted gallium nitride epitaxial layers using Raman measurements. We have calculated deformation potential constants for $E_2$(high) mode in these epi-layers. The…

Materials Science · Physics 2009-11-11 S. Mal , A. Singha , S. Dhara , A. Roy

In this paper, the reported experimental data in [Sci. Rep., 2012, 2, 533] related to electrical transport properties in bulk ZnO, ZnMgO/ZnO, and ZnMgO/ZnO/ZnMgO single and double heterostructures were analyzed quantitatively and the most…

Materials Science · Physics 2016-02-16 M. Amirabbasi , I. Abdolhosseini Sarsari

It is shown that the observed Quantum Hall Effect in epitaxial layers of heavily doped n-type GaAs with thickness (50-140 nm) larger the mean free path of the conduction electrons (15-30 nm) and, therefore, with a three-dimensional…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 S. S. Murzin , I. Claus , A. G. M. Jansen , N. T. Moshegov , A. I. Toropov , K. Eberl

We study the linear response spin Hall conductivity of a two-dimensional electron gas (2DEG) in the presence of the Rashba spin orbit interaction in the diffusive transport regime. When defect scattering is modeled by isotropic short-range…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Jun-ichiro Inoue , Gerrit E. W. Bauer , Laurens W. Molenkamp

A new mechanism for charge carrier scattering in transition-metal dichalcogenide monolayers is proposed on the basis of the theory of two-dimensional nonlocal screening developed for the dielectric function of thin-layer insulating…

Mesoscale and Nanoscale Physics · Physics 2025-11-25 Aram Manaselyan , Vram Mughnetsyan , Anna Asatryan , Albert Kirakosyan

We discuss electric transport and orbital magnetism of multilayer graphenes in a weak-magnetic field using the matrix decomposition technique. At zero temperature, the minimum conductivity is given by that of the monolayer system multiplied…

Mesoscale and Nanoscale Physics · Physics 2008-01-31 Masaaki Nakamura , Lila Hirasawa

Competitive mechanisms contribute to image contrast from dislocations in annular dark field scanning transmission electron microscopy ADF STEM. A clear theoretical understanding of the mechanisms underlying the ADF STEM contrast is…

Materials Science · Physics 2020-05-27 E. Oveisi , M. C. Spadaro , E. Rotunno , V. Grillo , C. Hebert

Stability and electronic properties of atomic layers of GaN are investigated in the framework of the van der Waals-density functional theory. We find that the ground state of the layered GaN is a planar graphene-like configuration rather…

Mesoscale and Nanoscale Physics · Physics 2013-02-22 Dongwei Xu , Haiying He , Ravindra Pandey , Shashi P. Karna

Whilst it has long been known that disorder profoundly affects transport properties, recent measurements on a series of solid solution 3d-transition metal alloys reveal two orders of magnitude variations in the residual resistivity. Using…

Materials Science · Physics 2019-03-18 Sai Mu , G. D. Samolyuk , S. Wimmer , M. C. Troparevsky , S. Khan , S. Mankovsky , H. Ebert , G. M. Stocks

We treat the question of the low temperature behavior of the dephasing rate of the electrons in the presence of elastic spin disorder scattering and interactions. In the frame of a self-consistent diagrammatic treatment, we obtain…

Disordered Systems and Neural Networks · Physics 2015-06-24 George Kastrinakis

We propose a mechanism for the quenching of the Shubnikov de Haas oscillations and the quantum Hall effect observed in epitaxial graphene. Experimental data show that the scattering time of the conduction electron is magnetic field…

Mesoscale and Nanoscale Physics · Physics 2008-05-13 Pierre Darancet , Nicolas Wipf , Claire Berger , Walt de Heer , Didier Mayou

Charge carrier scattering is critical to the electrical properties of two-dimensional materials such as graphene, transition metal dichalcogenide monolayers, black phosphorene, and tellurene. Beyond pristine two-dimensional materials,…

Mesoscale and Nanoscale Physics · Physics 2018-09-14 Dongchao Xu , Shuang Tang , Xu Du , Qing Hao

We predict that graphene is a unique system where disorder-assisted scattering (supercollisions) dominates electron-lattice cooling over a wide range of temperatures, up to room temperature. This is so because for momentum-conserving…

Mesoscale and Nanoscale Physics · Physics 2012-09-21 Justin C. W. Song , Michael Y. Reizer , Leonid S. Levitov
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