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Two-dimensional Fermi liquids at low temperatures have been theoretically established to exhibit an odd-even effect in the collective quasiparticle relaxation rates where even-parity deformations of the Fermi surface decay at a much faster…

Strongly Correlated Electrons · Physics 2026-03-09 Jeff Maki , Johannes Hofmann

Through the motivation of the recent discovery of dispersionless regions in the band structure of the delafossites, a model density of states of free fermions including a discontinuity as analytical anomaly is studied. The resulting…

Materials Science · Physics 2011-12-15 Stefan Kremer , Raymond Frésard

We compute the contribution to the conductivity from holographic Fermi surfaces obtained from probe fermions in an AdS charged black hole. This requires calculating a certain part of the one-loop correction to a vector propagator on the…

High Energy Physics - Theory · Physics 2013-09-04 Thomas Faulkner , Nabil Iqbal , Hong Liu , John McGreevy , David Vegh

We report on a detailed study of the terahertz (THz) photoresistivity in a strained HgTe three-dimensional topological insulator (3D TI) for all Fermi level positions: inside the conduction and valence bands, and in the bulk gap. In the…

Mesoscale and Nanoscale Physics · Physics 2020-11-24 M. L. Savchenko , M. Otteneder , I. A. Dmitriev , N. N. Mikhailov , Z. D. Kvon , S. D. Ganichev

At low temperature, a normal gas of unpaired spin-1/2 fermions is one of the cleanest realizations of a Fermi liquid. It is described by Landau's theory, where no phenomenological parameters are needed as the quasiparticle interaction…

Quantum Gases · Physics 2025-09-03 Thomas Repplinger , Songtao Huang , Yunpeng Ji , Nir Navon , Hadrien Kurkjian

We consider a problem of obtaining information about the scattering potentials of the monolayer graphene sample using available experimental data on its resistance. We have in mind a development of the study describing super-high mobility…

Mesoscale and Nanoscale Physics · Physics 2019-07-26 N. E. Firsova. S. A. Ktitorov

Topological nodal-line semimetals are characterized by symmetry-protected one-dimensional band-touching lines or loops, which give rise to their peculiar Fermi surfaces at low energies. Furthermore, if time-reversal or inversion symmetry…

Mesoscale and Nanoscale Physics · Physics 2024-01-17 Hamid Rahimpoor , Saeed H. Abedinpour

We proposed a formally exact, probabilistic method to assess the validity of the Thomas-Fermi potential for three-dimensional condensed matter systems where electron dynamics is constrained to the Fermi surface. Our method, which relies on…

Materials Science · Physics 2024-06-25 Gionni Marchetti

We analyse high-field current fluctuations in metallic systems by direct mapping of the Fermi-liquid correlations to the semiclassical nonequilibrium state. We give three applications. First, for bulk conductors, we show that there is a…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. Green , M. P. Das

Using ultrahigh magnetic fields up to 170 T and polarized midinfrared radiation with tunable wavelengths from 9.22 to 10.67 um, we studied cyclotron resonance in large-area graphene grown by chemical vapor deposition. Circular-polarization…

Mesoscale and Nanoscale Physics · Physics 2012-05-08 L. G. Booshehri , C. H. Mielke , D. G. Rickel , S. A. Crooker , Q. Zhang , L. Ren , E. H. Haroz , A. Rustagi , C. J. Stanton , Z. Jin , Z. Sun , Z. Yan , J. M. Tour , J. Kono

A precise characterization of the recently discovered crossover to hydrodynamic transport in electron liquids, and in particular of a conjectured exotic odd-parity transport regime, requires a full solution of the Fermi-liquid collision…

Mesoscale and Nanoscale Physics · Physics 2023-09-12 Johannes Hofmann , Ulf Gran

Recent techniques have allowed transition metal dichalcogenides (TMD) monolayers to be grown and adequately characterised. Of particular interest, their nonlinear optical response presents many promising opportunities for future…

Mesoscale and Nanoscale Physics · Physics 2020-03-06 David N. Carvalho , Fabio Biancalana

We analyze the range of validity of Thomas Fermi theory for describing charge density modulations induced by external potentials in neutral graphene. We compare exact results obtained from a tight-binding calculation with those of linear…

Mesoscale and Nanoscale Physics · Physics 2010-09-07 L. Brey , H. A. Fertig

The Kondo effect has been playing an important role in strongly correlated electon systems. The important point is that the magnetic impurity in metals is a typical example of the Fermi liquid. In the system the local spin is conserved in…

Strongly Correlated Electrons · Physics 2009-11-10 Hiroshi Kontani , Kosaku Yamada

In the present work we theoretically analyze the contribution from a transverse Fermi-liquid collective mode to the transmission of electromagnetic waves through a thin film of a clean metal in the presence of a strong external magnetic…

Materials Science · Physics 2007-10-23 Natalya A. Zimbovskaya

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…

Strongly Correlated Electrons · Physics 2009-10-30 J. Gonzalez , F. Guinea , M. A. H. Vozmediano

The nonequilibrium dynamics of carriers and phonons in graphene is investigated by solving the microscopic kinetic equations with the carrier-phonon and carrier-carrier Coulomb scatterings explicitly included. The Fermi distribution of hot…

Mesoscale and Nanoscale Physics · Physics 2012-03-15 B. Y. Sun , Y. Zhou , M. W. Wu

In this paper we investigate the $(2+1)$-dimensional topological non-Fermi liquid in strongly correlated electron system, which has a holographic dual description by Einstein gravity in $(3+1)$-dimensional anti-de Sitter (AdS) space-time.…

High Energy Physics - Theory · Physics 2017-06-28 Rong-Gen Cai , Yong-Hui Qi , Yue-Liang Wu , Yun-Long Zhang

We have observed long-lived (~30 ps) coherent oscillations of charge carriers due to cyclotron resonance (CR) in high-mobility two-dimensional electrons in GaAs in perpendicular magnetic fields using time-domain terahertz spectroscopy. The…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 X. Wang , D. J. Hilton , J. L. Reno , D. M. Mittleman , J. Kono

We theoretically investigate transport in a spin incoherent one dimensional electron system, which may be realized in quantum wires at low electron density and finite temperature. Both the pure and disordered cases are considered, both in…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Gregory A. Fiete , Karyn Le Hur , Leon Balents