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We consider transport properties of disordered two-dimensional electron gases under high perpendicular magnetic field, focusing in particular on the peak longitudinal conductivity $\sigma_{xx}^\mathrm{peak}$ at the quantum Hall plateau…

Mesoscale and Nanoscale Physics · Physics 2012-08-23 Martina Flöser , Serge Florens , Thierry Champel

We study the spin-Hall conductance fluctuations in ballistic mesoscopic systems. We obtain universal expressions for the spin and charge current fluctuations, cast in terms of current-current autocorrelation functions. We show that the…

Mesoscale and Nanoscale Physics · Physics 2012-12-14 J. G. G. S. Ramos , A. L. R. Barbosa , D. Bazeia , M. S. Hussein , C. H. Lewenkopf

We provide a detailed quantitative analysis of transport properties in the p-wave superconducting state of Sr2RuO4. Specifically, we calculate ultrasound attenuation rate and electronic thermal conductivity within the mean field…

Superconductivity · Physics 2009-11-11 Takuji Nomura

We discuss surface roughness effects on the conduction of electrons in metals using both the quantal Kubo-Greenwood formalism and the semi-classical Fuchs-Sondheimer method. The main purpose here is to compare these methods and clarify a…

Mesoscale and Nanoscale Physics · Physics 2021-06-09 Hai-Yao Deng

Two critical points have been revealed in the normal-state phase diagram of the electron-doped cuprate superconductor Nd$_{2-x}$Ce$_x$CuO$_4$ by exploring the Fermi surface properties of high quality single crystals by high-field…

We derive exact physical consequences of particle-hole symmetry of the $\nu=1/2$ state of electrons in a strong magnetic field. We show that if the symmetry is not spontaneously broken, the Hall conductivity and the susceptibility satisfy…

Mesoscale and Nanoscale Physics · Physics 2017-03-16 Michael Levin , Dam Thanh Son

Famous non-Fermi liquid-like behaviors of the transport phenomena in high-Tc cuprates (Hall coefficient, magnetoresistance, thermoelectric power, Nernst coefficient, etc) are caused by the current vertex corrections in neary…

Strongly Correlated Electrons · Physics 2009-11-11 Hiroshi Kontani

In quasi-two dimensional Ce(Ir,Rh)In$_5$ system, it has been suggested that the phase diagram contains two distinct domes with different heavy fermion superconducting states. We here report the systematic pressure dependence of the electron…

Strongly Correlated Electrons · Physics 2009-11-13 Y. Nakajima , H. Shishido , H. Nakai , T. Shibauchi , M. Hedo , Y. Uwatoko , T. Matsumoto , R. Settai , Y. Onuki , H. Kontani , Y. Matsuda

Strange metals exhibit linear resistivity and anomalous Hall transport, yet a comprehensive theory that accounts for both phenomena is still lacking. Recent studies have shown SYK-like spatially random couplings between a Fermi surface and…

High Energy Physics - Theory · Physics 2025-07-15 Yi-Li Wang , Young-Kwon Han , Xian-Hui Ge , Sang-Jin Sin

Density functional plus dynamical mean field calculations are used to show that in transition metal oxides, rotational and tilting (GdFeO$_3$-type) distortions of the ideal cubic perovskite structure produce a multiplicity of low-energy…

Strongly Correlated Electrons · Physics 2015-09-08 Hung T. Dang , Jernej Mravlje , Antoine Georges , Andrew J. Millis

We consider the Hall conductivity due to the motion of a vortex in a lattice-model of a clean superconductor, using a combination of general arguments, unrestricted Hartree-Fock calculations, and exact diagonalization. In the weak coupling…

Superconductivity · Physics 2015-04-13 Erez Berg , Sebastian D. Huber , Netanel H. Lindner

We present an analysis of the normal state magnetotransport in the heavy fermion superconductor CeIrIn${_5}$. The Hall effect and the transverse magnetoresistance in this material do not appear to be uniquely correlated, as inferred from…

Strongly Correlated Electrons · Physics 2008-10-13 Sunil Nair , M. Nicklas , J. L. Sarrao , J. D. Thompson , F. Steglich , S. Wirth

An oscillographic study of the Hall voltage with an unpolarized alternating current through a platinum sample revealed choral features of the Hall effect, which clearly demonstrate the presence of the spin Hall effect in metals with a…

Mesoscale and Nanoscale Physics · Physics 2021-01-27 Yu. N. Chiang , M. O. Dzyuba

The breakdown of the celebrated Fermi liquid theory in the strange metal phase is the central enigma of correlated quantum matter. Motivated by recent experiments reporting short-lived carriers, along with the ubiquitous observations of…

Superconductivity · Physics 2021-08-25 Anurag Banerjee , Maxence Grandadam , Hermann Freire , Catherine Pépin

Recent experiments revealed non-Fermi-liquid resistivity in the unconventional superconductor Sr$_{2}$RuO$_{4}$ when strain pushes one of the Fermi surfaces close to a van Hove singularity. The origin of this behavior and whether it can be…

Strongly Correlated Electrons · Physics 2019-05-22 František Herman , Jonathan Buhmann , Mark H Fischer , Manfred Sigrist

Many unconventional superconductors exhibit a common set of anomalous charge transport properties that characterize them as `strange metals', which provides hope that there is single theory that describes them. However, model-independent…

Strongly Correlated Electrons · Physics 2021-11-02 Ian M. Hayes , Nikola Maksimovic , Mun K. Chan , Gilbert N. Lopez , B. J. Ramshaw , Ross D. McDonald , James G. Analytis

We consider a non-Hermitian yet $\mathcal{PT}$-symmetric Fermi liquid ($\mathcal{PT}$-FL) in external electric fields. Due to $\mathcal{PT}$-symmetry, the system exhibits real spectrum, Fermi surface and electric conductivity are…

Strongly Correlated Electrons · Physics 2023-05-30 Alexander Kruchkov

We introduce and solve a model of interacting electrons and phonons that is a natural generalization of the Sachdev-Ye-Kitaev-model and that becomes superconducting at low temperatures. In the normal state two Non-Fermi liquid fixed points…

Strongly Correlated Electrons · Physics 2019-09-25 Ilya Esterlis , Jörg Schmalian

A refined semi-holographic non-Fermi liquid model, in which carrier electrons hybridize with operators of a holographic critical sector, has been proposed recently for strange metallic behavior. The model, consistently with effective theory…

Strongly Correlated Electrons · Physics 2024-09-24 Sutapa Samanta , Hareram Swain , Benoît Douçot , Giuseppe Policastro , Ayan Mukhopadhyay

A density-functional-theory based relativistic scattering formalism is used to study charge transport through thin Pt films with room temperature lattice disorder. A Fuchs-Sondheimer specularity coefficient $p \sim 0.5$ is needed to…

Mesoscale and Nanoscale Physics · Physics 2021-12-30 Rohit S. Nair , Max S. Rang , Paul J. Kelly