Landau levels with magnetic tunneling in a Weyl semimetal and magnetoconductance of a ballistic p-n junction

D. R. Saykin, K. S. Tikhonov, Ya I. Rodionov

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

We study the Landau levels (LLs) of a Weyl semimetal with two adjacent Weyl nodes. We consider different orientations η= (B,k0) of magnetic field B with respect to k0, the vector of Weyl node splitting. A magnetic field facilitates the tunneling between the nodes, giving rise to a gap in the transverse energy of the zeroth LL. We show how the spectrum is rearranged at different η and how this manifests itself in the change of behavior of the differential magnetoconductance dG(B)/dB of a ballistic p-n junction. Unlike the single-cone model where Klein tunneling reveals itself in positive dG(B)/dB, in the two-cone case, G(B) is nonmonotonic with a maximum at Bc Φ0k02/ln(k0lE) for large k0lE, where lE=v/|e|E, with E for the built-in electric field and Φ0 for the magnetic flux quantum.

Original languageEnglish
Article number041202
JournalPhysical Review B
Volume97
Issue number4
DOIs
Publication statusPublished - 16 Jan 2018
Externally publishedYes

Fingerprint

Dive into the research topics of 'Landau levels with magnetic tunneling in a Weyl semimetal and magnetoconductance of a ballistic p-n junction'. Together they form a unique fingerprint.

Cite this