Electrically tunable Kondo effect as a direct measurement of the chiral anomaly in disorder Weyl semimetals

Abstract

We propose a mechanism to directly measure the chiral anomaly in disorder Weyl semimetals (WSMs) by the Kondo effect. We find that in a magnetic and electric field driven WSM, the locations of the Kondo peaks can be modulated by the chiral chemical potential, which is proportional to $\mathbf{E}\cdot \mathbf{B}$. The Kondo peaks come from spin fluctuations within the impurities, which apart from the temperature, relate closely to the host's Fermi level. In WSMs, the chiral-anomaly-induced chirality population imbalance will shift the local Fermi levels of the paired Weyl valleys toward opposite directions in energy, and then affects the Kondo effect. Consequently, the Kondo effect can be tunable by an external electric field via the chiral chemical potential. This is unique to the chiral anomaly. Base on this, we argue that the electrically tunable Kondo effect can serve as a direct measurement of the chiral anomaly in WSMs. The Kondo peaks are robust against the disorder effect and therefore, the signal of the chiral anomaly survives for a relatively weak magnetic field.

arXiv comment7 pages, 4 figures

References in corpus (34)

• Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
• Weyl and Dirac Semimetals in Three Dimensional Solids
• Discovery of a Three-dimensional Topological Dirac Semimetal, Na3Bi
• Titanic Magnetoresistance in WTe2
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Observation of a topological 3D Dirac semimetal phase in high-mobility Cd3As2
• Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal NbP
• Classification of stable three-dimensional Dirac semimetals with nontrivial topology
• Signatures of the Adler-Bell-Jackiw chiral anomaly in a Weyl Fermion semimetal
• Giant negative magnetoresistance induced by the chiral anomaly in individual Cd3As2 nanowires
• Topological quantum matter with cold atoms
• Observation of superconductivity in 3D Dirac semimetal Cd3As2 crystal
• Experimental tests of the chiral anomaly magnetoresistance in the Dirac-Weyl semimetals Na${}_3$Bi and GdPtBi
• 3D quantum Hall effect of Fermi arcs in topological semimetals
• Are the double Fermi arcs of Dirac semimetals topologically protected?
• Room-temperature chiral charge pumping in Dirac semimetals
• Weak antilocalization and localization in disordered and interacting Weyl semimetals
• Tip induced unconventional superconductivity on Weyl semimetal TaAs
• Kondo effect in three-dimensional Dirac and Weyl systems
• Quantum Oscillations of The Positive Longitudinal Magnetoconductivity: a Fingerprint for Identifying Weyl Semimetals
• Simulating and exploring Weyl semimetal physics with cold atoms in a two-dimensional optical lattice
• Kondo effect on the surface of 3D topological insulators: Signatures in scanning tunneling spectroscopy
• Photoninduced Weyl half-metal phase and spin filter effect from topological Dirac semimetals
• Anderson Impurity in Helical Metal
• Dirac semimetals $A_{3}Bi$ ($A$=Na,K,Rb) as $Z_2$ Weyl semimetals
• A magnetic Impurity in a Weyl semimetal
• Probing surface states of topological insulator: Kondo effect and Friedel oscillation under magnetic field
• Quantum-oscillation-modulated angular dependences of the positive longitudinal magnetoconductivity and planar Hall effect in Weyl semimetals
• Kondo Effect with Weyl Semimetal Fermi Arcs
• Chiral magnetic effect in three-dimensional optical lattices
• Magnetic adatoms on graphene in the Kondo regime: an Anderson model treatment
• Superconducting states and Majorana modes in transition-metal dichalcogenides under inhomogeneous strain
• Kondo screening by the surface modes of a strong topological insulator
• Positive longitudinal spin magnetoconductivity in ${\mathbb{Z}}_2$ topological Dirac semimetals

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