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Related papers: Two-channel conduction in YbPtBi

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We report the thermodynamic and magnetotransport properties of the half-Heusler antimonide ErPdSb, studied on single-crystalline samples in wide ranges of temperature and magnetic fields. The compound was found to order…

Strongly Correlated Electrons · Physics 2026-03-10 Abhinav Agarwal , Shovan Dan , Maciej J. Winiarski , Orest Pavlosiuk , Piotr Wisniewski , Dariusz Kaczorowski

We theoretically study transport in two-dimensional semimetals. Typically, electron and hole puddles emerge in the transport layer of these systems due to smooth fluctuations in the potential. We calculate the electric response of the…

Mesoscale and Nanoscale Physics · Physics 2014-10-29 Michael Knap , Jay D. Sau , Bertrand I. Halperin , Eugene Demler

Three-dimensional topological insulators harbour metallic surface states with exotic properties. In transport or optics, these properties are typically masked by defect-induced bulk carriers. Compensation of donors and acceptors reduces the…

Mesoscale and Nanoscale Physics · Physics 2016-06-29 N. Borgwardt , J. Lux , I. Vergara , Zhiwei Wang , A. A. Taskin , Kouji Segawa , P. H. M. van Loosdrecht , Yoichi Ando , A. Rosch , M. Grüninger

We develop a two-carrier Hall effect model fitting algorithm to analyze temperature-dependent magnetotransport measurements of a high-density ($\sim4\times10^{13}$ cm$^2$/Vs) polarization-induced two-dimensional hole gas (2DHG) in a GaN/AlN…

Applied Physics · Physics 2025-01-27 Joseph E. Dill , Chuan F. C. Chang , Debdeep Jena , Huili Grace Xing

Predicting charge transport in organic molecular crystals is notoriously challenging. Carrier mobility calculations in organic semiconductors are dominated by quantum chemistry methods based on charge hopping, which are laborious and only…

Materials Science · Physics 2018-03-21 Nien-En Lee , Jin-Jian Zhou , Luis A. Agapito , Marco Bernardi

Through first-principles calculations, the phonon-limited transport properties of cubic boron-V compounds (BP, BAs and BSb) are studied. We find that the high optical phonon frequency in these compounds leads to the substantial suppression…

Materials Science · Physics 2018-09-26 Te-Huan Liu , Bai Song , Laureen Meroueh , Zhiwei Ding , Qichen Song , Jiawei Zhou , Mingda Li , Gang Chen

We analyze the quantum transport properties of MAPbI3 within a tight-binding model. Charge carriers are strongly scattered by the Fr\"ohlich interaction with longitudinal optical phonon modes. This limits their mobilities at room…

The present work aims to address the electronic and magnetic properties of the intermetallic compound GdPd$_2$Bi through a comprehensive study of the structural, magnetic, electrical and thermal transport on a polycrystalline sample,…

The optical properties of (001)-oriented NbP single crystals have been studied in a wide spectral range from 6 meV to 3 eV from room temperature down to 10 K. The itinerant carriers lead to a Drude-like contribution to the optical response;…

Mesoscale and Nanoscale Physics · Physics 2018-11-09 D. Neubauer , A. Yaresko , Weiwu Li , A. Löhle , R. Hübner , M. B. Schilling , C. Shekhar , C. Felser , M. Dressel , A. V. Pronin

A polycrystalline sample of the MgB_2 superconductor was investigated by measurements of the electrical resistivity, the thermopower and the thermal conductivity in the temperature range between 1.8K and 300K in zero magnetic field. The…

The complex optical conductivity of the half-Heusler compound GdPtBi is measured in a frequency range from 20 to 22 000 cm$^{-1}$ (2.5 meV - 2.73 eV) at temperatures down to 10 K in zero magnetic field. We find the real part of the…

Mesoscale and Nanoscale Physics · Physics 2018-10-29 F. Hütt , A. Yaresko , M. B. Schilling , C. Shekhar , C. Felser , M. Dressel , A. V. Pronin

Magnetotransport properties of the high-quality FeSe crystal, measured in a wide temperature range and in magnetic fields up to 50 T, show the symmetry of the main holelike and electronlike bands in this compound. In addition to the main…

In this Letter, four-point magnetotransport of high mobility InGaAs/InP heterointerfaces is measured from 1.6 K to 300 K and from 0 to 15 T, and an analysis is shown whereby the mobility and density of the two-dimensional (2D) accumulation…

Mesoscale and Nanoscale Physics · Physics 2011-01-26 Yang Tang , Chuanle Zhou , M. Grayson

The temperature variation of partial mobility and effective mobility for undoped p-GaSb have been calculated using Matthiessen rule. The effective mobility depends on the ionized, acoustic, polar optical and non-polar optical scattering…

Condensed Matter · Physics 2007-05-23 Altje Latununuwe , Pepen Arifin , Euis Sustini , Horasdia Saragih

The noncentrosymmetric Half Heusler compound YPtBi exhibits superconductivity below a critical temperature T_c = 0.77 K with a zero-temperature upper critical field H_c2(0) = 1.5 T. Magnetoresistance and Hall measurements support…

Superconductivity · Physics 2011-12-22 Nicholas P. Butch , P. Syers , Kevin Kirshenbaum , Andrew P. Hope , Johnpierre Paglione

We measure hole transport in poly(3-hexylthiophene) field effect transistors with channel lengths from 3 $\mu$m down to 200 nm, from room temperature down to 10 K. Near room temperature effective mobilities inferred from linear regime…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 B. H. Hamadani , D. Natelson

Chromium antimonide has emerged as a key material platform for studying altermagnetism because of its simple binary composition, high N\'eel temperature, and semimetallic electronic structure. Here, we investigate electrical and thermal…

A decade of intense research on two-dimensional (2D) atomic crystals has revealed that their properties can differ greatly from those of the parent compound. These differences are governed by changes in the band structure due to quantum…

We report transport measurement in zero and applied magnetic field on a single crystal of NbAs. Transverse and longitudinal magnetoresistance in the plane of this tetragonal structure does not saturate up to 9 T. In the transverse…

Materials Science · Physics 2015-06-24 N. J. Ghimire , Yongkang Luo , M. Neupane , D. J. Williams , E. D. Bauer , F. Ronning

Heusler compounds with six valence electrons per atom have attracted interest as thermoelectric materials owing to their semimetallic and semiconducting properties. Here, we theoretically and experimentally investigate electronic transport…

Materials Science · Physics 2024-12-10 Fabian Garmroudi , Michael Parzer , Takao Mori , Andrej Pustogow , Ernst Bauer