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Considering scattering by unintentional background charged impurities and by charged dopants in the modulation doping layer as well as by GaAs acoustic phonons, we theoretically consider the practical intrinsic (phonons) and extrinsic…

Mesoscale and Nanoscale Physics · Physics 2008-09-16 E. H. Hwang , S. Das Sarma

Over the past few years, there has been a growing interest in layered transition metal dichalcogenides (TMD) such as molybdenum disulfide (MoS2). Most studies so far have focused on the electronic and optoelectronic properties of…

Mesoscale and Nanoscale Physics · Physics 2016-10-03 Morteza Kayyalha , Jesse Maassen , Mark Lundstrom , Li Shi , Yong P. Chen

By using high-quality single crystals, we quantitatively compare the transport properties between LiFeAs and LiFeP superconductors with compensated electron and hole carriers. The low-temperature resistivity follows the Fermi-liquid $AT^2$…

Superconductivity · Physics 2012-02-27 S. Kasahara , K. Hashimoto , H. Ikeda , T. Terashima , Y. Matsuda , T. Shibauchi

We propose and study theoretically a new mechanism of electron-impurity scattering in doped seminconductors with large dielectric constant. It is based upon the idea of \textit{vector} character of deformations caused in the crystalline…

Mesoscale and Nanoscale Physics · Physics 2022-09-26 Khachatur G. Nazaryan , Mikhail Feigel'man

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 discuss the Seebeck coefficient and the Hall mobility of electrons confined in narrow SrTiO3 quantum wells as a function of the three-dimensional carrier density and temperature. The quantum wells contain a fixed sheet carrier density of…

Strongly Correlated Electrons · Physics 2016-09-15 Tyler A. Cain , Evgeny Mikheev , Clayton A. Jackson , Susanne Stemmer

Two-dimensional electron systems (2DESs) confined to the surface of narrowband semiconductors have attracted great interest since they can easily integrate with superconductivity (or ferromagnetism) enabling new possibilities in hybrid…

Mesoscale and Nanoscale Physics · Physics 2019-01-10 Kaushini Wickramasinghe , William Mayer , Joseph Yuan , Tri Nguyen , Lucy Jiao , Vladimir Manucharyan , Javad Shabani

Several doped semiconductors, in contrast to heavily-doped silicon and germanium, host extremely mobile carriers, which give rise to quantum oscillations detectable in relatively low magnetic fields. The small Fermi energy in these dilute…

Materials Science · Physics 2015-09-03 Kamran Behnia

The expansion of the conductivity in 2-d quantum Lorentz models in terms of the scatterer density n is considered. We show that nonanalyticities in the density expansion due to scattering processes with small and large momentum transfers,…

Statistical Mechanics · Physics 2009-10-28 F. Evers , D. Belitz , Wansoo Park

In this research work, roll-to-roll chemical vapor deposited graphene device electronic transport properties are benchmarked to elucidate and comprehend mobility degradation in the real-world commercial application of graphene devices.…

Mesoscale and Nanoscale Physics · Physics 2022-10-13 Bhupesh Bishnoi

We numerically examine the driven transport of an overdamped self-propelled particle through a two-dimensional array of circular obstacles. A detailed analysis of transport quantifiers (mobility and diffusivity) has been performed for two…

Soft Condensed Matter · Physics 2023-10-16 Shubhadip Nayak , Sohom Das , Poulami Bag , Tanwi Debnath , Pulak K. Ghosh

The double carrier transport has been observed in thin film black phosphorus (BP) field effect transistor (FET) devices in highly electron doped region. BP thin films with typical thickness of 15 nm were encapsulated by hexagonal boron…

Mesoscale and Nanoscale Physics · Physics 2018-11-08 Kohei Hirose , Toshihito Osada , Kazuhito Uchida , Toshihiro Taen , Kenji Watanabe , Takashi Taniguchi , Yuichi Akahama

Dissipationless charge transport is one of the defining properties of superconductors (SC). The interplay between dimensionality and disorder in determining the onset of dissipation in SCs remains an open theoretical and experimental…

Mesoscale and Nanoscale Physics · Physics 2020-04-27 A. Benyamini , E. J. Telford , D. M. Kennes , D. Wang , A. Williams , K. Watanabe , T. Taniguchi , J. Hone , C. R. Dean , A. J. Millis , A. N. Pasupathy

We show that the coherence of charge transfer through a weakly coupled double-dot dimer can be determined by analyzing the statistics of the conductance pattern, and does not require large phase coherence length in the host material. We…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 L. P. Rokhinson , L. J. Guo , S. Y. Chou , D. C. Tsui , E. Eisenberg , R. Berkovits , B. L. Altshuler

We study carrier transport through graphene on SrTiO$_3$ substrates by considering relative contributions of Coulomb and resonant impurity scattering to graphene resistivity. We establish that charged impurity scattering must dominate…

Mesoscale and Nanoscale Physics · Physics 2012-08-28 S. Das Sarma , Qiuzi Li

Rashba spin-orbit coupling appears in 2D systems lacking inversion symmetry, and causes the spin-splitting of otherwise degenerate energy bands into an upper and lower helicity band. In this paper, we explore how impurity scattering affects…

Mesoscale and Nanoscale Physics · Physics 2018-11-26 Joel Hutchinson , Joseph Maciejko

We present the exact analytical equation of diffusion-mobility for two-dimensional (2D) Schr\"odinger type transport systems, from molecules to materials. The density of electronic states in such Schr\"odinger systems pertains to the 2D…

Statistical Mechanics · Physics 2019-09-27 K. Navamani

Anisotropic charge carrier transport in black phosphorus limited by ionized impurity scattering at finite temperature is explored theoretically. The anisotropic electronic structure enters the calculation for the polarizability (screening),…

Mesoscale and Nanoscale Physics · Physics 2017-05-03 Yue Liu , P. Paul Ruden

Quantum transport properties in molecularly thin perovskite/graphene heterostructure are experimentally investigated by Shubnikov-de Hass (SdH) oscillation and photo-resistance spectroscopy. We find an efficient charge transfer between the…

Mesoscale and Nanoscale Physics · Physics 2023-12-22 Yan Sun , C. Morice , D. Garrot , R. Weil , K. Watanabe , T. Taniguchi , M. Monteverde , A. D. Chepelianskii

The anisotropic electron transport in the (001) plane of sublimation-grown Cl$_{2}$-NDI (naphthalene diimide) single crystals is analysed over a temperature range between 175 K and 300 K. Upon cooling from room temperature to 175 K the…