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We consider the transport properties of topological insulators surface states in the presence of uncorrelated point-like disorder, both in the classical and quantum regimes. The transport properties of those two-dimensional surface states…

介观与纳米尺度物理 · 物理学 2012-05-24 Pierre Adroguer , David Carpentier , Jérôme Cayssol , Edmond Orignac

Layered material $\beta$-IrSn$_4$ ($I4_1/acd$, $D^{20}_{4h}$, #142), whose electron bands have symmetry-enforced Dirac points, was investigated using high-quality single crystals. It exhibits a pronounced linear field-dependence of…

We discuss various aspects of non-local electrical transport in anisotropic metals. For a metal with circular Fermi surface, the scattering rates entering the local conductivity and viscosity tensors are well-defined, corresponding to…

介观与纳米尺度物理 · 物理学 2023-10-23 Graham Baker , Davide Valentinis , Andrew P. Mackenzie

The shape of the Fermi surface influences many physical phenomena in materials and a growing interest in how the spin-dependent properties are related to the fermiology of crystals has surged. Recently, a novel current-dependent nonlinear…

介观与纳米尺度物理 · 物理学 2024-05-14 Anna C. Marx , Homayoun Jafari , Eelco Tekelenburg , Maria A. Loi , Jagoda Slawinska , Marcos H. D. Guimaraes

We observed pronounced angular-dependent magnetoresistance (MR) oscillations in a high-quality Bi2Se3 single crystal with the carrier density of 5x10^18 cm^-3, which is a topological insulator with residual bulk carriers. We show that the…

材料科学 · 物理学 2015-05-18 Kazuma Eto , Zhi Ren , A. A. Taskin , Kouji Segawa , Yoichi Ando

We consider an inhomogeneous strongly correlated system where external disorder divides it into mesoscopic cells.Strong inter-particle repulsion suppresses the quantum tunneling between cells and open a wide temperature range for incoherent…

强关联电子 · 物理学 2007-05-23 Darwin Chang , Dung-Hai Lee

An outstanding question concerning the underdoped cuprate concerns the true nature of their Fermi surface which appears as a set of disconnected arcs. Theoretical models have proposed two distinct possibilities: (1) each arc is the…

超导电性 · 物理学 2010-09-09 M. F. Smith , Ross H. McKenzie

In two-dimensional materials where interacting Fermi pockets occur in valleys related by time-reversal symmetry, a spontaneous valley imbalance results in a novel state known as an orbital magnet. Due to the breaking of time-reversal…

介观与纳米尺度物理 · 物理学 2026-05-18 Fernando Peñaranda , Fernando de Juan

In this paper we present detailed theoretical analysis of the frequency and/or magnetic field dependence of the surface impedance of a metal at the anomalous skin effect. We calculate the surface impedance in the presence of a magnetic…

材料科学 · 物理学 2007-05-23 Natalya A. Zimbovskaya

It is shown how the exchange coupling between two ferromagnetic planes embedded in an infinite non-magnetic metal, regarded as a function of the distance between the planes, may contain important components which oscillate with periods not…

凝聚态物理 · 物理学 2007-05-23 M. S. Ferreira , J. d'Albuquerque e Castro , D. M. Edwards , J. Mathon

Electrical properties of multi-layer graphene are subject to variations due to random interlayer alignments. In this work we reported graphene interlayer conductance without special layer aligning. Ohmic contacts between two graphene layers…

介观与纳米尺度物理 · 物理学 2016-10-07 Yin Sun , Xintong Zhang , Longyan Wang , Lining Zhang , Salahuddin Raju , Mansun Chan

We investigate the mechanical properties of a layered material with interlayer friction. We propose a model that contains lateral elasticity and interlayer friction to obtain the response function both in the Fourier and real spaces. By…

软凝聚态物质 · 物理学 2024-05-20 Tomoki Sasada , Kento Yasuda , Yuto Hosaka , Shigeyuki Komura

Several strongly correlated metals display B-linear magnetoresistance (LMR) with a universal slope, in sharp contrast to the $B^2$ scaling predicted by Fermi liquid theory. We provide a unifying explanation of the origin of LMR by focusing…

强关联电子 · 物理学 2024-11-19 Jaewon Kim , Ehud Altman , Shubhayu Chatterjee

The effect of strong anisotropy on the Fermi line of a system of correlated electrons is studied in two space dimensions, using renormalization group techniques. Inflection points change the scaling exponents of the couplings, enhancing the…

强关联电子 · 物理学 2009-10-30 J. Gonzalez , F. Guinea , M. A. H. Vozmediano

A long standing mystery of fundamental importance in correlated electron physics is to understand strange non-Fermi liquid metals that are seen in diverse quantum materials. A striking experimental feature of these metals is a resistivity…

强关联电子 · 物理学 2021-08-19 Dominic V. Else , T. Senthil

We investigate quantum dynamics and kinetics of a 2D conductor with closed Fermi surface reconstructed by a biaxial density wave, in which electrons move along a two-dimensional periodic net of semiclassical trajectories coupled by the…

强关联电子 · 物理学 2021-10-28 A. M. Kadigrobov , B. Keran , D. Radić

The interlayer magnetoresistance of a quasi-two-dimensional layered metal with a d-wave pseudogap is calculated semiclassically. An expression for the interlayer resistivity as a function of the strength and direction of the magnetic field,…

强关联电子 · 物理学 2009-06-08 M. F. Smith , Ross H. McKenzie

Peaks in the magnetoresistivity of the layered superconductor $\kappa$-(BEDT-TTF)$_2$Cu(NCS)$_2$, measured in fields $\leq 45$ T applied within the layers, show that the Fermi surface is extended in the interlayer direction and enable the…

强关联电子 · 物理学 2009-11-07 John Singleton , P. A. Goddard , A. Ardavan , N. Harrison , S. J. Blundell , J. A. Schlueter , A. M. Kini

We review the theory of oscillatory magnetic coupling in Metallic Multilayers across alloy spacers. We illustrate the relationship between the frequencies of the oscillations and the extremal caliper vectors of the Fermi surface of the…

材料科学 · 物理学 2007-05-23 B. L. Györffy , N. N. Lathiotakis

Transport properties of magnetic multilayers in current perpendicular to the plane of the layers geometry are defined by diffusive scattering in the bulk of the layers, and diffusive and ballistic scattering across the interfaces. Due to…

材料科学 · 物理学 2016-08-31 Asya Shpiro