Exotic Lifshitz transitions in topological materials

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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2018-01-01

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Department of Applied Physics

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en

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10

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Physics-Uspekhi, Volume 61, issue 1, pp. 89-98

Abstract

Topological Lifshitz transitions involve many types of topological structures in momentum and frequency-momentum spaces, such as Fermi surfaces, Dirac lines, Dirac and Weyl points, etc., each of which has its own stability-supporting topological invariant (N1, N2, N3, N3, etc.). The topology of the shape of Fermi surfaces and Dirac lines and the interconnection of objects of different dimensionalities produce a variety of Lifshitz transition classes. Lifshitz transitions have important implications for many areas of physics. To give examples, transition-related singularities can increase the superconducting transition temperature; Lifshitz transitions are the possible origin of the small masses of elementary particles in our Universe, and a black hole horizon serves as the surface of the Lifshitz transition between vacua with type-I and type-II Weyl points.

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| openaire: EC/H2020/694248/EU//TOPVAC

Keywords

Black hole event horizon, Dirac point, Fermi surface, Topological Lifshitz transitions, Weyl point

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DOI

10.3367/UFNe.2017.01.038218

Citation

Volovik, G E 2018, 'Exotic Lifshitz transitions in topological materials', Physics-Uspekhi, vol. 61, no. 1, pp. 89-98. https://doi.org/10.3367/UFNe.2017.01.038218

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https://urn.fi/URN:NBN:fi:aalto-201909255466

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[article-cris] Perustieteiden korkeakoulu / SCI