Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids

Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids

Landauʼs Fermi-liquid theory is the standard model for metals, characterized by the existence of electron quasiparticles near a Fermi surface as long as Landauʼs interaction parameters lie below critical values for instabilities. Recently this fundamental paradigm has been challenged by the physics...

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Main Authors: Kim, Ki-Seok, Kim, Heon-Jung, Sasaki, M, Wang, j-f, Li, L
Format: Online
Language:English
Published: Taylor & Francis 2014
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5090383/
id pubmed-5090383
recordtype oai_dc
spelling pubmed-50903832016-11-22 Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids Kim, Ki-Seok Kim, Heon-Jung Sasaki, M Wang, j-f Li, L Focus on Materials Science of Topological Insulators and Superconductors Landauʼs Fermi-liquid theory is the standard model for metals, characterized by the existence of electron quasiparticles near a Fermi surface as long as Landauʼs interaction parameters lie below critical values for instabilities. Recently this fundamental paradigm has been challenged by the physics of strong spin–orbit coupling, although the concept of electron quasiparticles remains valid near the Fermi surface, where Landauʼs Fermi-liquid theory fails to describe the electromagnetic properties of this novel metallic state, referred to as Weyl metal. A novel ingredient is that such a Fermi surface encloses a Weyl point with definite chirality, referred to as a chiral Fermi surface, which can arise from breaking of either time reversal or inversion symmetry in systems with strong spin–orbit coupling, responsible for both the Berry curvature and the chiral anomaly. As a result, electromagnetic properties of the Weyl metallic state are described not by conventional Maxwell equations but by axion electrodynamics, where Maxwell equations are modified with a topological-in-origin spatially modulated term. Taylor & Francis 2014-11-25 /pmc/articles/PMC5090383/ /pubmed/27877724 http://dx.doi.org/10.1088/1468-6996/15/6/064401 Text en © 2014 National Institute for Materials Science http://creativecommons.org/licenses/by/3.0/ Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0/) . Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Kim, Ki-Seok
Kim, Heon-Jung
Sasaki, M
Wang, j-f
Li, L
spellingShingle Kim, Ki-Seok
Kim, Heon-Jung
Sasaki, M
Wang, j-f
Li, L
Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids
author_facet Kim, Ki-Seok
Kim, Heon-Jung
Sasaki, M
Wang, j-f
Li, L
author_sort Kim, Ki-Seok
title Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids
title_short Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids
title_full Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids
title_fullStr Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids
title_full_unstemmed Anomalous transport phenomena in Weyl metal beyond the Drude model for Landauʼs Fermi liquids
title_sort anomalous transport phenomena in weyl metal beyond the drude model for landauʼs fermi liquids
description Landauʼs Fermi-liquid theory is the standard model for metals, characterized by the existence of electron quasiparticles near a Fermi surface as long as Landauʼs interaction parameters lie below critical values for instabilities. Recently this fundamental paradigm has been challenged by the physics of strong spin–orbit coupling, although the concept of electron quasiparticles remains valid near the Fermi surface, where Landauʼs Fermi-liquid theory fails to describe the electromagnetic properties of this novel metallic state, referred to as Weyl metal. A novel ingredient is that such a Fermi surface encloses a Weyl point with definite chirality, referred to as a chiral Fermi surface, which can arise from breaking of either time reversal or inversion symmetry in systems with strong spin–orbit coupling, responsible for both the Berry curvature and the chiral anomaly. As a result, electromagnetic properties of the Weyl metallic state are described not by conventional Maxwell equations but by axion electrodynamics, where Maxwell equations are modified with a topological-in-origin spatially modulated term.
publisher Taylor & Francis
publishDate 2014
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5090383/
_version_ 1613707788383420416

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