Effect of disorder on the transverse magnetoresistance of Weyl semimetals

Rodionov, Ya. I.; Кugel, K. I.; Аронзон, Б. А.; Nori, Franco

doi:10.1103/physrevb.102.205105

Cited by 13 publications

(1 citation statement)

References 40 publications

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“…Although topological states are protected against disorder, inhomogeneity and disorder could still complicate the identification of the non‐trivial physical properties. [ 1,18–21 ] Absence of these effects in elements is therefore, a motivating factor to study them. Recently, a group 16

sp

element tellurium (Te) has been reported to be a Weyl semiconductor based on typical signatures such as the planar Hall effect (PHE), negative longitudinal magnetoresistance, as well as logarithmically periodic magneto‐oscillations in the quantum limit regime.…”

Section: Introductionmentioning

confidence: 99%

Signatures of Topological Surface State and Unconventional Magnetotransport Properties in Elemental Ruthenium

et al. 2023

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In recent years, the pursuit of new topological materials has created a vast and ever growing catalogue of compounds. However, the example of elemental topological metals is still rather limited. So far, the non-trivial topological states have been probed in only a handful of elements and that too rarely in a transition metal. By combining the angle-resolved photoemission spectroscopy (ARPES) and magnetotransport measurements, here, ruthenium (Ru) is experimentally confirmed to be a topological metal, validating a recent theoretical prediction. The ARPES data for Ru(0001) provide evidence of the topological surface state related to the bulk Dirac node. Ru also exhibits a prominent planar Hall effect, thus further indicating its Dirac semimetallic nature. Large electron and hole mobilities are estimated, which are comparable to several topological semimetals. The non-trivial nature of electronic band of Ru is also supported by the large non-saturating transverse magnetoresistance.

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