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The electronic transport in polypyrrole thin films synthesized chemically from the vapor phase is studied as a function of temperature as well as of electric and magnetic fields. We find distinct differences in comparison to the behavior of…

Disordered Systems and Neural Networks · Physics 2009-11-13 C. C. Bof Bufon , T. Heinzel

This work demonstrated two different kinds of magneto-transport behaviors in epitaxial $L1_{0}$ MnAl film as a function of temperature. The magneto-resistance ratio (MR) was negative and exhibited evident enhancement in the resistivity at…

Mesoscale and Nanoscale Physics · Physics 2016-10-26 Linqiang Luo , Nattawut Anuniwat , Nam Dao , Yishen Cui , Stuart A. Wolf , Jiwei Lu

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

The electronic and magneto transport properties of reduced anatase TiO2 epitaxial thin films are analyzed considering various polaronic effects. Unexpectedly, with increasing carrier concentration, the mobility increases, which rarely…

Mesoscale and Nanoscale Physics · Physics 2023-03-07 B. X. Yan , D. Y. Wan , X. Chi , C. J. Li , M. R. Motapothula , S. Hooda , P. Yang , Z. Huang , S. W. Zeng , A. Gadekar , S. J. Pennycook , A. Rusydi , Ariando , J. Martin , T. Venkatesan

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

Epitaxial SrTi1-xVxO3 thin films with thicknesses of ~16 nm were grown on (001)-oriented LSAT substrates using the pulsed electron-beam deposition technique. The transport study revealed a temperature driven metal-insulator transition (MIT)…

Strongly Correlated Electrons · Physics 2015-06-17 Man Gu , Stuart A. Wolf , Jiwei Lu

We have investigated electron transport in Nb doped SrTiO$_3$ single crystals for two doping densities. We find that the resistivity and mobility are temperature dependent in both whereas the carrier concentration is almost temperature…

Materials Science · Physics 2013-02-11 K. G. Rana , V. Khikhlovskyi , T. Banerjee

We describe a detailed study of the structural, magnetic, and magneto-transport properties of single-crystal, n-type, Mn-doped Bi2Te3 thin films grown by molecular beam epitaxy. With increasing Mn concentration, the crystal structure…

Thin films of magnetite (Fe3O4) are grown on single crystal GaAs (100) substrate by pulsed laser deposition. X ray diffraction (XRD) result shows the (111) preferred orientation of the Fe3O4 film and x-ray photoelectron spectroscopy confirm…

Materials Science · Physics 2009-12-08 Ram Prakash , R. J. Choudhary , L. S. Sharath Chandra , N. Lakshmi , D. M. Phase

We calculate the mobility of a two-dimensional electron gas residing at the interface of LaAlO$_{3}$/SrTiO$_{3}$ following a three band Boltzmann approach at low temperature, where carrier-charged impurity scattering process is assumed to…

Mesoscale and Nanoscale Physics · Physics 2016-06-22 A. Faridi , R. Asgari , A. Langari

The present study describes a facile route of zinc oxide (ZnO) grows using the solution-dependent electrostatic spray deposition (ESD) method at temperatures ranging from 300 {\deg}C - 500 {\deg}C. In this work, zinc chloride (ZnCl2) was…

Materials Science · Physics 2024-06-21 Fysol Ibna Abbas , Mutsumi Sugiyama

We performed terahertz magneto-optical spectroscopy of FeSe thin film to elucidate the charge carrier dynamics. The measured diagonal (longitudinal) and off-diagonal (Hall) conductivity spectra are well reproduced by two-carrier Drude…

We report the temperature dependence of resistivity (rho) and Hall coefficient (R_H) in the normal state of homogeneously disordered epitaxial NbN thin films with kFl~3.27-10.12. The superconducting transition temperature (Tc) of these…

We investigate the electrical properties of nominally undoped, 10-40-nm-thick ScN(111) layers grown on nearly lattice-matched GaN:Fe/Al$_2$O$_3$(0001) templates by plasma-assisted molecular beam epitaxy. Hall-effect measurements yield…

Applied Physics · Physics 2023-12-14 Duc V. Dinh , Oliver Brandt

We report on a systematic study of the temperature-dependent Hall coefficient and thermoelectric power in ultra-thin metallic LaNiO$_3$ films that reveal a strain-induced, self-doping carrier transition that is inaccessible in the bulk. As…

Strongly Correlated Electrons · Physics 2012-04-11 E. J. Moon , J. M. Rondinelli , N. Prasai , B. A. Gray , M. Kareev , J. Chakhalian , J. L. Cohn

This study investigates the molecular beam epitaxial (MBE) growth of titanium nitride (TiN) thin films, achieving a high residual resistivity ratio (RRR) of 15.8. We observed a strong correlation between growth temperature and crystalline…

Optical and magneto-optical properties of ZnMnO films grown at low temperature by Atomic Layer Deposition are discussed. A strong polarization of excitonic photoluminescence is reported, surprisingly observed without splitting or spectral…

Charge transport properties of thin films of sol--gel processed undoped and Al-doped zinc oxide nanoparticles with variable doping level between 0.8 at% and 10 at% were investigated. The X-ray diffraction studies revealed a decrease of the…

Materials Science · Physics 2008-11-13 Maria S Hammer , Daniel Rauh , Carsten Deibel , Vladimir Dyakonov

By using the pulsed-laser-ablation technique, we have successfully grown the La$_{3}$Ni$_{2}$O$_{7-\delta}$ thin films with $c$-axis orientation perpendicular to the film surface. X-ray diffraction shows that the (00l) peaks can be well…

Superconductivity · Physics 2025-10-10 Yuecong Liu , Mengjun Ou , Haifeng Chu , Huan Yang , Qing Li , Yingjie Zhang , Hai-Hu Wen

BaSnO$_3$ (BSO) is a promising transparent conducting oxide (TCO) with reported room-temperature (RT) Hall mobility exceeding 320 cm$^{2}$V$^{-1}$s$^{-1}$. Among perovskite oxides, it has the highest RT mobility, about 30 times higher than…