skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electromagnetic Signatures of the Chiral Anomaly in Weyl Semimetals

Journal Article · · Physical Review Letters
 [1];  [1];  [1]
  1. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Dept. of Physics

Weyl semimetals are predicted to realize the three-dimensional axial anomaly first discussed in particle physics. The anomaly leads to unusual transport phenomena such as the chiral magnetic effect in which an applied magnetic field induces a current parallel to the field. Here we investigate diagnostics of the axial anomaly based on the fundamental equations of axion electrodynamics. We find that materials with Weyl nodes of opposite chirality and finite energy separation immersed in a uniform magnetic field exhibit an anomaly-induced oscillatory magnetic field with a period set by the chemical potential difference of the nodes. In the case where a chemical potential imbalance is created by applying parallel electric and magnetic fields, we find a suppression of the magnetic-field component parallel to the electric field inside the material for rectangular samples, suggesting that the chiral magnetic current opposes this imbalance. For cylindrical geometries, we instead find an enhancement of this magnetic-field component along with an anomaly-induced azimuthal component. We propose experiments to detect such magnetic signatures of the axial anomaly.

Research Organization:
Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
FG02-08ER46532; SC0009973; FG02-13ER41917; DOE DE-FG02-08ER46532
OSTI ID:
1536450
Alternate ID(s):
OSTI ID: 1332143
Journal Information:
Physical Review Letters, Vol. 117, Issue 21; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

References (54)

Dirac versus Weyl Fermions in Topological Insulators: Adler-Bell-Jackiw Anomaly in Transport Phenomena journal December 2013
Axion response in Weyl semimetals journal September 2013
Three-dimensional Dirac semimetal and quantum transport in Cd 3 As 2 journal September 2013
Dynamical axion field in topological magnetic insulators journal March 2010
Discovery of a Weyl fermion state with Fermi arcs in niobium arsenide journal August 2015
On the interaction of magnetic monopoles with axionic domain walls journal April 1984
Weyl semimetal with broken time reversal and inversion symmetries journal April 2012
Signatures of the Adler–Bell–Jackiw chiral anomaly in a Weyl fermion semimetal journal February 2016
Generalized helicity and Beltrami fields journal May 2014
Dirac Semimetal in Three Dimensions journal April 2012
Weyl Semimetal Phase in Noncentrosymmetric Transition-Metal Monophosphides journal March 2015
Experimental Discovery of Weyl Semimetal TaAs journal July 2015
Topological response in Weyl semimetals and the chiral anomaly journal September 2012
A PCAC puzzle: π0→γγ in the σ-model journal March 1969
Topological field theory of time-reversal invariant insulators journal November 2008
Helicity-protected ultrahigh mobility Weyl fermions in NbP journal March 2016
Observation of Weyl nodes in TaAs journal August 2015
Berry Curvature, Triangle Anomalies, and the Chiral Magnetic Effect in Fermi Liquids journal November 2012
Charge Transport in Weyl Semimetals journal January 2012
Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal Cd3As2 journal November 2014
Surface plasmon polaritons in topological Weyl semimetals journal June 2016
Chiral magnetic effect journal October 2008
Evidence for the chiral anomaly in the Dirac semimetal Na3Bi journal September 2015
Chiral magnetic effect in a two-band lattice model of Weyl semimetal journal March 2015
Engineering Weyl nodes in Dirac semimetals by a magnetic field journal October 2013
Gyrotropic Magnetic Effect and the Magnetic Moment on the Fermi Surface journal February 2016
Surface states and topological invariants in three-dimensional topological insulators: Application to Bi1xSbx journal July 2008
Chiral Anomaly and Diffusive Magnetotransport in Weyl Metals journal December 2014
Topological insulators with inversion symmetry journal July 2007
Colloquium: Topological insulators journal November 2010
Observation of a three-dimensional topological Dirac semimetal phase in high-mobility Cd3As2 journal May 2014
Discovery of a Three-Dimensional Topological Dirac Semimetal, Na3Bi journal January 2014
Weyl Semimetal in a Topological Insulator Multilayer journal September 2011
Axial-Vector Vertex in Spinor Electrodynamics journal January 1969
Discovery of a Weyl fermion semimetal and topological Fermi arcs journal July 2015
Limits on a Lorentz- and parity-violating modification of electrodynamics journal February 1990
Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal candidate NbP journal June 2015
Chiral magnetic effect and natural optical activity in metals with or without Weyl points journal December 2015
The Adler-Bell-Jackiw anomaly and Weyl fermions in a crystal journal November 1983
Accidental Degeneracy in the Energy Bands of Crystals journal August 1937
Axial anomaly and longitudinal magnetoresistance of a generic three-dimensional metal journal August 2015
Structure of axionic domain walls journal September 1985
Chiral anomaly and classical negative magnetoresistance of Weyl metals journal September 2013
Two applications of axion electrodynamics journal May 1987
Experimental Realization of a Three-Dimensional Dirac Semimetal journal July 2014
Quantum Transport Evidence for the Three-Dimensional Dirac Semimetal Phase in Cd 3 As 2 journal December 2014
Chiral magnetic effect in ZrTe5 journal February 2016
Electromagnetic Response of Weyl Semimetals journal July 2013
Negative magnetoresistance in Dirac semimetal Cd3As2 journal January 2016
A stable three-dimensional topological Dirac semimetal Cd3As2 journal May 2014
Axionic field theory of ( 3 + 1 ) -dimensional Weyl semimetals journal December 2013
Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates journal May 2011
A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class journal June 2015
Reply to Comment by Vanderbilt, Souza and Haldane: arXiv:1312.4200 preprint January 2013

Cited By (3)

Giant optical activity and Kerr effect in type-I and type-II Weyl semimetals journal August 2019
Quantized chiral anomaly materials cloak journal June 2017
Surface plasmon polaritons in thin-film Weyl semimetals journal May 2019

Similar Records

Exploring self-consistency of the equations of axion electrodynamics in Weyl semimetals
Journal Article · Mon Aug 09 00:00:00 EDT 2021 · Physical Review. B · OSTI ID:1536450

Experimental Tests of the Chiral Anomaly Magnetoresistance in the Dirac-Weyl Semimetals Na 3 Bi and GdPtBi
Journal Article · Tue Jul 03 00:00:00 EDT 2018 · Physical Review. X · OSTI ID:1536450

Anomaly-induced sound absorption in Weyl semimetals
Journal Article · Fri Jun 25 00:00:00 EDT 2021 · Physical Review. B · OSTI ID:1536450