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We theoretically study the inelastic scattering rate and the carrier mean free path for energetic hot electrons in graphene, including both electron-electron and electron-phonon interactions. Taking account of optical phonon emission and…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Wang-Kong Tse , E. H. Hwang , S. Das Sarma

Using the first-principles calculations based on density functional theory, we systematically investigate the strain-engineering (tensile and compressive strain) electronic, mechanical and transport properties of monolayer penta-SiC$_2$. By…

Materials Science · Physics 2017-01-16 Yuanfeng Xu , Zeyu Ning , Hao Zhang , Gang Ni , Hezhu Shao , Bo Peng , Xiangchao Zhang , Xiaoying He , Yongyuan Zhu , Heyuan Zhu

Current-voltage dependence is measured in (Ga,Sb)-doped ZnO up to 150 kV/cm electric fields. A channel temperature is controlled by applying relatively short (few ns) voltage pulses to two-terminal samples. The dependence of electron drift…

The transport properties and electrical bandgap of nominally undoped ~75-nm-thick CrN layers simultaneously grown on AlN(0001) and AlN(11\bar{2}2) templates using plasma-assisted molecular beam epitaxy are investigated. The layers grown on…

Materials Science · Physics 2025-11-26 Duc V. Dinh , Jens Herfort , Andreas Fiedler , Oliver Brandt

The electron-phonon interaction and related transport properties are investigated in monolayer silicene and MoS2 by using a density functional theory calculation combined with a full-band Monte Carlo analysis. In the case of silicene, the…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 Xiaodong Li , Jeffrey T. Mullen , Zhenghe Jin , Kostyantyn M. Borysenko , M. Buongiorno Nardelli , Ki Wook Kim

We systematically study the structures and electrical transport properties of a series of Sn-doped indium oxide (ITO) films with thickness $t$ ranging from $\sim$5 to $\sim$53\,nm. Scanning electron microscopy and x-ray diffraction results…

Mesoscale and Nanoscale Physics · Physics 2015-03-30 Yu-Jie Zhang , Kuang-Hong Gao , Zhi-Qing Li

Producing and manipulating graphene on fab-compatible scale, while maintaining its remarkable carrier mobility, is key to finalize its technological application. We show that a large-scale approach (chemical vapor deposition on Cu followed…

Mesoscale and Nanoscale Physics · Physics 2020-08-24 Sergio Pezzini , Vaidotas Mišeikis , Simona Pace , Francesco Rossella , Kenji Watanabe , Takashi Taniguchi , Camilla Coletti

We present the structural and transport properties of La$_{1-x}$Sr$_x$Co$_{1-y}$Nb$_y$O$_3$ ($y=$ 0.1 and $x=$ 0; $y=$ 0.15 and $x=$ 0.3) thin films grown on (001) orientated single crystalline ceramic substrates to investigate the effect…

Materials Science · Physics 2020-08-19 Rishabh Shukla , Ajay Kumar , Sandeep Dalal , Akhilesh Pandey , R. S. Dhaka

We investigated the pressure effects of a superconductivity on thin films of Sn. Elemental superconductor Sn with a body-centered tetragonal structure, $\beta$-Sn, exhibits superconductivity below the superconducting transition temperature…

Ta-doped SnO$_2$ films with high conductivity and high optical transparency have been successfully fabricated using rf-sputtering method and their electrical transport properties have been investigated. All films reveal degenerate…

Disordered Systems and Neural Networks · Physics 2022-02-17 Zong-Hui Gao , Zi-Xiao Wang , Dong-Yu Hou , Xin-Dian Liu , Zhi-Qing Li

ScN is an emerging transition metal nitride with unique physical properties arising from the d-electrons of Sc. In this work we present the results of optical characterization techniques spectroscopic ellipsometry, Raman spectroscopy, and…

Materials Science · Physics 2025-03-20 J. Grümbel , Y. Oshima , A. Dubroka , M. Ramsteiner , R. Goldhahn , M. Feneberg

This work presents transport coefficients of electrons (bulk drift velocity, longitudinal diffusion coefficient, and effective ionization frequency) in CO2 measured under time-of-flight conditions over a wide range of the reduced electric…

Plasma Physics · Physics 2017-05-24 M. Vass , I. Korolov , D. Loffhagen , N. Pinhao , Z. Donko

We present an empirical model for the nearballistic transport in carbon nanotube (CNT) transistors used as strain sensors. This model describes the intrinsic effect of strain on the transport in CNTs by taking into account phonon scattering…

Mesoscale and Nanoscale Physics · Physics 2017-06-30 C. Wagner , J. Schuster , T. Gessner

We have studied temperature dependences of electron transport in graphene and its bilayer and found extremely low electron-phonon scattering rates that set the fundamental limit on possible charge carrier mobilities at room temperature. Our…

Mesoscale and Nanoscale Physics · Physics 2008-01-07 S. V. Morozov , K. S. Novoselov , M. I. Katsnelson , F. Schedin , D. C. Elias , J. A. Jaszczak , A. K. Geim

The electron transport in the two-dimensional gas formed in tensile-strained Si1-xGex/Si/Si1-xGex heterostructures is investigated using Monte Carlo simulation. At first the electron mobility is studied in ungated modulation doped…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. Monsef , P. Dollfus , S. Galdin-Retailleau , H. -J. Herzog , T. Hackbarth

Here we carry out a first-principles time-dependent calculation to investigate how fast electrons actually move under laser excitation and how large the electron transport affects demagnetization on the shortest time scale. To take into…

Materials Science · Physics 2018-11-14 G. P. Zhang , Y. H. Bai , T. Jenkins , T. F. George

Transport properties of degenerate relativistic electrons along quantizing magnetic fields in neutron star crusts are considered. A kinetic equation is derived for the spin polarization density matrix of electrons. Its solution does not…

Astrophysics · Physics 2011-05-23 A. Y. Potekhin

We performed systematic studies on the transport properties of FeSe thin films with controlled degrees of in-plane lattice strain, including both tensile and compressive strains. The superconducting transition temperature, $T_{\mathrm c}$,…

Superconductivity · Physics 2018-12-05 Fuyuki Nabeshima , Masataka Kawai , Tomoya Ishikawa , Atsutaka Maeda

Highly conducting $SnO_{2}$ thin films were prepared by chemical spray pyrolysis technique. One set of as-deposited films were annealed in air for 2 h at 850$^{o}$C. These as-deposited and annealed films were irradiated using $Au^{9+}$ ions…

Materials Science · Physics 2017-08-23 Sushant Gupta , Fouran Singh , Indra Sulania , B. Das

We present a first-principles framework to investigate the electron scattering channels and transport properties for polar material by combining the exact solution of linearized electron-phonon (e-ph) Boltzmann transport equation in its…

Materials Science · Physics 2017-02-22 Te-Huan Liu , Jiawei Zhou , Bolin Liao , David J. Singh , Gang Chen