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We report a transport study on Pd$_3$In$_7$ which displays multiple Dirac type-II nodes in its electronic dispersion. Pd$_3$In$_7$ is characterized by low residual resistivities and high mobilities, which are consistent with Dirac-like…

A theoretical study of magnetic field (h) effects on single-particle spectra and transport quantities of heavy fermion metals in the paramagnetic phase is carried out. We have employed a non-perturbative local moment approach (LMA) to the…

Strongly Correlated Electrons · Physics 2009-10-09 D. Parihari , N. S. Vidhyadhiraja

We perform a semiclassical calculation of the magnetoresistance of spinless two-dimensional fermions in a long-range correlated random magnetic field. In the regime relevant for the problem of the half filled Landau level the perturbative…

Condensed Matter · Physics 2009-10-28 D. V. Khveshchenko

A magnetic field parallel to an electrical current does not produce a Lorentz force on the charge carriers. Therefore, orbital longitudinal magnetoresistance is unexpected. Here we report on the observation of a large and non saturating…

Electron gases at the surfaces of (001), (110), and (111) oriented SrTiO3 (STO) have been created using Ar+-irradiation with fully metallic behavior and low-temperature-mobility as large as 5500 cm2V-1s-1, 1300 cm2V-1s-1 and 8600 cm2V-1s-1…

Strongly Correlated Electrons · Physics 2015-06-01 Ludi Miao , Renzhong Du , Yuewei Yin , Qi Li

Inspired from an experimentally examined organic conductor, a novel mechanism for negative magnetoresistance is proposed for repulsively interacting electrons on a lattice whose band dispersion contains a flat portion (a flat bottom below a…

Condensed Matter · Physics 2009-10-31 Ryotaro Arita , Kazuhiko Kuroki , Hideo Aoki

Linear magnetoresistance occurs in semiconductors as a consequence of strong electrical disorder and is characterized by nonsaturating magnetoresistance that is proportional to the applied magnetic field. By investigating a disordered…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 H. G. Johnson , S. P. Bennett , R. Barua , L. H Lewis , D. Heiman

Extremely large magnetoresistance is realized in the nonmagnetic layered metal PdCoO2. In spite of a highly conducting metallic behavior with a simple quasi-two-dimensional hexagonal Fermi surface, the interlayer resistance reaches up to…

Many of the most interesting and technologically important electronic materials discovered in the past two decades have two common features: a layered crystal structure and strong interactions between electrons. Two of the most fundamental…

Strongly Correlated Electrons · Physics 2009-11-11 Malcolm P. Kennett , Ross H. McKenzie

Orbital diamagnetism requires closed orbits according to the Liftshiftz-Kosevich theory. Therefore, one might expect that open Fermi surfaces do not have a diamagnetic response. Contrary to this expectation, we show that open orbits in…

Mesoscale and Nanoscale Physics · Physics 2023-03-09 Kostas Vilkelis , Ady Stern , Anton Akhmerov

The vanishing of the divergence of the total stress tensor (magnetic plus kinetic) in a neighborhood of an equilibrium plasma containing a toroidal surface of discontinuity gives boundary and jump conditions that strongly constrain…

Plasma Physics · Physics 2011-08-02 M. McGann , S. R. Hudson , R. L. Dewar , G. von Nessi

The electric resistance of ferromagnet/normal-metal/ferromagnet perpendicular spin valves depends on the relative angle between the magnetization directions. In contrast to common wisdom, this angular magnetoresistance is found to be not…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Jan Manschot , Arne Brataas , Gerrit E. W. Bauer

Resistance of certain (conductive and otherwise isotropic) ferromagnets turns out to exhibit anisotropy with respect to the direction of magnetisation: R$_\parallel$ different from R$_\perp$ with reference to the electric current direction.…

Materials Science · Physics 2023-10-31 Philipp Ritzinger , Karel Vyborny

In several experiments the magnitude of the contribution of magnetic impurities to the Kondo resistivity shows size dependence in mesoscopic samples. It was suggested ten years ago that magnetic surface anisotropy can be responsible for the…

Strongly Correlated Electrons · Physics 2009-11-11 O. Ujsaghy , L. Szunyogh , A. Zawadowski

We have calculated the resistivity of a GaAs\slash AlGaAs heterojunction in the presence of both an in--plane magnetic field and a weak perpendicular component using a semiclassical Boltzmann transport theory. These calculations take into…

Condensed Matter · Physics 2009-10-28 J. M. Heisz , E. Zaremba

It is assumed that in a two-dimensional electron system with strong correlation (a Wigner liquid), appearance of some relatively slow-moving objects (clusters) composed of small number of electrons is possible. Such clusters may exist in…

Strongly Correlated Electrons · Physics 2007-05-23 E. G. Batyev

We theoretically and numerically show that longitudinal orbital currents in ferromagnets depend on the magnetization direction, which contribute to the anisotropic magnetoresistance (AMR). This orbital contribution to AMR arises from the…

Mesoscale and Nanoscale Physics · Physics 2020-06-24 Hye-Won Ko , Hyeon-Jong Park , Gyungchoon Go , Jung Hyun Oh , Kyoung-Whan Kim , Kyung-Jin Lee

We demonstrate that an anisotropic and rotated Fermi surface can generate a finite transverse response in electron transport, even in the absence of a magnetic field or Berry curvature. Using a two-dimensional continuum model, we show that…

Mesoscale and Nanoscale Physics · Physics 2026-05-05 Abhiram Soori

The antiferromagnetic Heisenberg model on an anisotropic kagome lattice may be a good minimal model for real magnetic systems as well as a limit from which the isotropic case can be better understood. We therefore study the nearest-neighbor…

Strongly Correlated Electrons · Physics 2009-08-05 E. M. Stoudenmire , Leon Balents

Anisotropic magnetoresistance (AMR), originating from spin-orbit coupling (SOC), is the sensitivity of the electrical resistance in magnetic systems to the direction of spin magnetization. Although this phenomenon has been experimentally…

Materials Science · Physics 2020-08-12 Dongzhe Li , Fabian Pauly , Alexander Smogunov