Recent developments in transport phenomena in Weyl semimetals
By P. Hosur, Xiao-Liang Qi. 2013
637 citations recorded by the source corpus.
The last decade has witnessed great advancements in the science and engineering of systems with unconventional band structures, seeded by studies of graphene and topological insulators. While the band structure of graphene simulates massless relativistic electrons in two dimensions, topological insulators have bands that wind non-trivially over momentum space in a certain abstract sense. Over the last couple of years, enthusiasm has been burgeoning in another unconventional and topological (although, not quite in the same sense as topological insulators) phase – the Weyl semimetal. In this phase, electrons mimic Weyl fermions that are well known in high-energy physics, and inherit many of their properties, including an apparent violation of charge conservation known as the chiral anomaly. In this review, we recap some of the unusual transport properties of Weyl semimetals discussed in the literature so far, focusing on signatures whose roots lie in the anomaly. We also mention several proposed realizations of this phase in condensed matter systems, since they were what arguably precipitated activity on Weyl semimetals in the first place.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/cd390f433bb9aa0c83b6479d3cd83d0718310d20
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In Atomic and Molecular Physics, and Optics
In Materials Chemistry
Citations in the corpus
- Experimental discovery of Weyl semimetal TaAs (2015, background): “Another unique property of a WSM is the chiral anomaly (23-25), which implies the apparent violation of charge conservation and leads to interesting transport properties, such as negative magneto-resistance, chiral magnetic effects and anomalous Hall effect (26-28).”
- Weyl and Dirac semimetals in three-dimensional solids (2017, methodology): “Transport properties of Weyl semimetals were reviewed in (Hosur and Qi, 2013) and (Burkov, 2015a), while the extensive contributions of ab initio techniques to the discovery of topological materials (including Weyl and Dirac states) were reviewed in Bansil et al., 2016; Weng et al., 2016a.…”
- Inhomogeneous Weyl and Dirac Semimetals: Transport in Axial Magnetic Fields and Fermi Arc Surface States from Pseudo-Landau Levels (2016, background): “Many peculiar transport properties have been attributed to topological semimetals [10,11], while not many of them have proven easy to measure.”