--October
26 10, 2020

BEYOND THE CONICAL BAND APPROXIMATION OF A WEYL SEMIMETAL

By | 2020-10-26T11:04:21+00:00 October 26th, 2020|SCI Highlights|0 Comments

A. Akrap, University of Fribourg, A. V. Pronin, Universität Stuttgart, and M. Orlita, LNCMI-Grenoble.  Experiments have demonstrated many gapless electronic phases with conical bands. These phases exist within diverse classes of systems comprising graphene and many different topological materials. Low-energy excitations in such conical bands somewhat resemble truly relativistic [...]

26 10, 2020

RECONSTRUCTED FERMI SURFACE IN THE CHARGE-DENSITY-WAVE STATE OF TiSe2

By | 2020-11-05T15:25:17+00:00 October 26th, 2020|SCI Highlights|0 Comments

Owen Moulding and Sven Friedemann, University of Bristol.  TiSe2 features a charge density wave (CDW) driven by condensation of excitons, i.e., pairs of electrons and holes, alongside electronphonon coupling. The CDW transition at 202 K gaps out most of the Fermi surface. Quantum-oscillation measurements at the HFML Nijmegen provide [...]

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