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We have conducted a comprehensive investigation into the magneto-transport properties of few-layer black phosphorus in terms of phase coherence length, phase coherence time, and mobility via weak localization measurement and Hall-effect…

材料科学 · 物理学 2016-04-04 Yuchen Du , Adam T. Neal , Hong Zhou , Peide D. Ye

Temperature-dependent resistivity and magnetoresistance are measured in bulk tetragonal phase of antiferromagnetic CuMnAs and the latter is found to be anisotropic both due to structure and magnetic order. We compare these findings to model…

We measure the temperature-dependent carrier density and resistivity of the topological surface state of thin exfoliated Bi2Se3 in the absence of bulk conduction. When the gate-tuned chemical potential is near or below the Dirac point the…

Motivated by the experimental measurement of electrical and hall conductivity, thermopower and Nernst effect, we calculate the longitudinal and transverse electrical and heat transport in graphene in the presence of unitary scatterers as…

材料科学 · 物理学 2015-05-19 Vincent Ugarte , Vivek Aji , C. M. Varma

Recent $\textit{ab initio}$ theoretical calculations of the electrical performance of several two-dimensional materials predict a low-field carrier mobility that spans several orders of magnitude (from 26,000 to 35 cm$^{2}$ V$^{-1}$…

Temperature dependent FMR-measurements of Ni and Co films are analysed using a microscopic theory for ultrathin metallic systems. The mechanism governing the temperature dependence of the magnetic anisotropy energy is identified and…

强关联电子 · 物理学 2009-11-11 J. Kienert , S. Schwieger , K. Lenz , J. Lindner , K. Baberschke , W. Nolting

We have studied temperature- and electric-field dependent carrier transport in single flakes of MoS$_{2}$ treated with n-butyllithium. The temperature dependence of the four-terminal resistance follows the Efros-Shklovskii variable range…

介观与纳米尺度物理 · 物理学 2018-01-17 Nikos Papadopoulos , Gary A. Steele , Herre S. J. van der Zant

We discuss effects of anisotropic scattering in transport properties of ultracold atoms in three-dimensional optical potentials. Within the realm of the first Born approximation, we calculate the self energy, the scattering mean free time,…

无序系统与神经网络 · 物理学 2023-02-16 Afifa Yedjour , Abdelaali Boudjemaa

The scattering of electrons on impurities with internal degrees of freedom is bound to produce the signatures of the scatterer's own dynamics and results in nontrivial electronic transport properties. Previous studies of polaronic…

强关联电子 · 物理学 2021-01-18 J. Krsnik , I. Batistić , A. Marunović , E. Tutiš , O. S. Barišić

When smooth granular material is fluidized by vertically shaking a container, we find that the temperature in the direction of energy input always exceeds the temperature in the other directions. An analytical model is presented which shows…

统计力学 · 物理学 2007-05-23 Devaraj van der Meer , Peter Reimann

The magnetic properties in the Ising ferromagnetic thin films are studied. By transfer matrix method, the transition temperatures are calculated as a function of the intra- and interlayer exchange interactions. The transition temperatures…

其他凝聚态物理 · 物理学 2007-08-20 Hamze Nakhaee Motlagh , H. Moradi

The electron transport through the parabolic quantum wire placed in longitudinal magnetic field in the presence of the system of short-range impurities inside the wire is investigated. Using approach based on the zero-range potential theory…

介观与纳米尺度物理 · 物理学 2008-01-03 I. A. Kokurin , V. A. Margulis

Magnetic anisotropy plays an essential role in information technology applications of magnetic materials, providing a means to retain the long-term stability of a magnetic state in the presence of thermal fluctuations. Anisotropy consists…

材料科学 · 物理学 2020-08-05 Richard F. L. Evans , Levente Rózsa , Sarah Jenkins , Unai Atxitia

We study the superfluid state of two-species heteronuclear Fermi gases with isotropic contact and anisotropic long-range dipolar interactions. By explicitly taking account of Fock exchange contribution, we derive self-consistent equations…

量子气体 · 物理学 2012-05-23 Renyuan Liao , Wu-Ming Liu

In this paper, we explore the effect of a finite surface charge mobility on the interfacial transport: conductance, streaming currents, electro- and diffusio-osmotic flows. We first show that the surface charge mobility modifies the…

软凝聚态物质 · 物理学 2019-02-04 Timothée Mouterde , Lydéric Bocquet

Instead of normal non-Arrhenius relationship, the carrier mobility $ln({\mu})$ v.s. $1/T^2$ showed abnormal dependence in an MEH-PPV / InP nanocrystal composite system that a critical temperature $(T_c)$ behavior is prominent in temperature…

介观与纳米尺度物理 · 物理学 2013-10-22 Yating Zhang , Jianquan Yao , Hoi Sing Kwok

Black phosphorus (BP) exhibits highly anisotropic properties and dynamical behavior that are unique even among two-dimensional and van der Waals (vdW) layered materials. Here, we show that an interlayer lattice contraction and concerted,…

介观与纳米尺度物理 · 物理学 2022-07-27 Mazhar Chebl , Xing He , Ding-Shyue Yang

The transparent conducting oxide SnO2 is a wide bandgap semiconductor that is easily n-type doped and widely used in various electronic and optoelectronic applications. Experimental reports of the electron mobility of this material vary…

The charge transport properties of hybrid halide perovskites are investigated with a combination of density functional theory including van der Waals interaction and the Boltzmann theory for diffusive transport in the relaxation time…

材料科学 · 物理学 2016-01-29 Carlo Motta , Fedwa El Mellouhi , Stefano Sanvito

We investigate the effect due to background impurities embedded in the region of two-dimensional electron gases to the magnetotransport. These impurities are achieved by homogeneously incorporating Si atoms in single quantum wells of high…

介观与纳米尺度物理 · 物理学 2015-11-26 E. P. Rugeramigabo , L. Bockhorn , R. J. Haug