Chiral Magnetic Effect due to Inhomogeneous Magnetic Fields in Noncentrosymmetric Weyl Semimetals
arXiv:1605.04567 · doi:10.7566/JPSJ.86.054707
Abstract
The chiral magnetic effect is a phenomenon where an electromagnetic current is generated along a magnetic field. Recently, in nonequilibrium systems, negative longitudinal magnetoresistance has been observed experimentally in Dirac/Weyl semimetals, which provides evidence for the chiral magnetic effect as a nonequilibrium current. On the other hand, the emergence of the chiral magnetic effect as an equilibrium current is still controversial. We propose a possible realization of the chiral magnetic effect as an equilibrium current using inhomogeneous magnetic fields. By employing tight-binding calculations and linear response theory, we demonstrate that a finite current density is generated by inhomogeneous magnetic fields, while the spatial integration of the current is equal to zero, which is consistent with the so-called "no-go theorem" of the chiral magnetic effect in real lattice systems. Moreover, we propose an experimental setup to detect the effect in Weyl semimetal materials.
arXiv comment6 pages, 7 figures
References in corpus (43)
- Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- Type-II Weyl Semimetals
- Weyl Semimetal in a Topological Insulator Multilayer
- The Chiral Magnetic Effect
- Experimental discovery of Weyl semimetal TaAs
- Chern semi-metal and Quantized Anomalous Hall Effect in HgCr2Se4
- Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
- Chiral Anomaly and Classical Negative Magnetoresistance of Weyl Metals
- Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase
- Observation of the chiral magnetic effect in ZrTe5
- Discovery of a Weyl Fermion semimetal state in NbAs
- Topological response in Weyl semimetals and the chiral anomaly
- Recent developments in transport phenomena in Weyl semimetals
- Prediction of the Weyl semimetal in the orthorhombic MoTe2
- Electromagnetic Response of Weyl Semimetals
- Experimental discovery of a topological Weyl semimetal state in TaP
- MoTe2: A Type-II Weyl Topological Metal
- Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena
- Scanning nano-SQUID with single electron spin sensitivity
- Weyl semimetal with broken time reversal and inversion symmetries
- A new type of Weyl semimetal with quadratic double Weyl fermions in SrSi2
- Time-Reversal-Breaking Weyl Fermions in Magnetic Heusler Alloys
- Axionic field theory of (3+1)-dimensional Weyl semi-metals
- Observation of Weyl nodes and Fermi arcs in TaP
- Observation of half-height magnetization steps in Sr2RuO4
- Arc-tunable Weyl Fermion metallic state in MoWTe
- Topological surface states and Fermi arcs of the noncentrosymmetric Weyl semimetals TaAs, TaP, NbAs, and NbP
- Axion response in Weyl semimetals
- Topological electronic structure and Weyl semimetal in the TlBiSe class of semiconductors
- Ideal Weyl semimetals in the chalcopyrites CuTlSe2, AgTlTe2, AuTlTe2 and ZnPbAs2
- Measuring Chern numbers above the Fermi level in the Type II Weyl semimetal MoWTe
- Generalized Bloch theorem and chiral transport phenomena
- Direct Observation of Nonequivalent Fermi-Arc States of Opposite Surfaces in Noncentrosymmetric Weyl Semimetal NbP
- Torsional chiral magnetic effect in Weyl semimetal with topological defect
- Chiral magnetic effect in two-band lattice model of Weyl semimetal
- Chiral pumping effect induced by rotating electric fields
- Optical gyrotropy as a test for dynamic chiral magnetic effect of Weyl semimetals
- Correlated double-Weyl semimetals with Coulomb interactions: possible applications to HgCr2Se4 and SrSi2
- Observation of Fermi Arcs in non-Centrosymmetric Weyl Semi-metal Candidate NbP
- Photovoltaic Chiral Magnetic Effect
- Chiral Magnetic Effect and Anomalous Hall Effect in Antiferromagnetic Insulators with Spin-Orbit Coupling
- Universal transport and resonant current from chiral magnetic effect