Discovery of Weyl fermion semimetals and topological Fermi arc states

MZ Hasan, SY Xu, I Belopolski… - Annual Review of …, 2017 - annualreviews.org
Weyl semimetals are conductors whose low-energy bulk excitations are Weyl fermions,
whereas their surfaces possess metallic Fermi arc surface states. These Fermi arc surface …

Quantum transport in Dirac and Weyl semimetals: a review

S Wang, BC Lin, AQ Wang, DP Yu… - Advances in Physics …, 2017 - Taylor & Francis
Topological semimetals are well known for the linear energy band dispersion in the bulk
state and topologically protected surface state with arc-like Fermi surface. The angle …

Large nonsaturating magnetoresistance and signature of nondegenerate Dirac nodes in ZrSiS

R Singha, AK Pariari, B Satpati… - Proceedings of the …, 2017 - National Acad Sciences
Whereas the discovery of Dirac-and Weyl-type excitations in electronic systems is a major
breakthrough in recent condensed matter physics, finding appropriate materials for …

Rational strain engineering in delafossite oxides for highly efficient hydrogen evolution catalysis in acidic media

F Podjaski, D Weber, S Zhang, L Diehl, R Eger… - Nature Catalysis, 2020 - nature.com
The rational design of hydrogen evolution reaction electrocatalysts that can compete with
platinum is an outstanding challenge in the process of designing viable power-to-gas …

On the search for the chiral anomaly in Weyl semimetals: the negative longitudinal magnetoresistance

RD Dos Reis, MO Ajeesh, N Kumar… - New Journal of …, 2016 - iopscience.iop.org
Recently, the existence of massless chiral (Weyl) fermions has been postulated in a class of
semi-metals with a non-trivial energy dispersion. These materials are now commonly …

The properties of ultrapure delafossite metals

AP Mackenzie - Reports on Progress in Physics, 2017 - iopscience.iop.org
Although they were first synthesized in chemistry laboratories nearly fifty years ago, the
physical properties of the metals PdCoO 2, PtCoO 2 and PdCrO 2 have only more recently …

Axial anomaly and longitudinal magnetoresistance of a generic three-dimensional metal

P Goswami, JH Pixley, S Das Sarma - Physical Review B, 2015 - APS
We show that the emergence of the axial anomaly is a universal phenomenon for a generic
three-dimensional metal in the presence of parallel electric (E) and magnetic (B) fields. In …

Gigantic negative magnetoresistance in the bulk of a disordered topological insulator

O Breunig, Z Wang, AA Taskin, J Lux, A Rosch… - Nature …, 2017 - nature.com
With the recent discovery of Weyl semimetals, the phenomenon of negative
magnetoresistance (MR) is attracting renewed interest. Large negative MR is usually related …

[HTML][HTML] Anomalous electronic structure and magnetoresistance in TaAs2

Y Luo, RD Mcdonald, PFS Rosa, B Scott… - Scientific reports, 2016 - nature.com
The change in resistance of a material in a magnetic field reflects its electronic state. In
metals with weakly-or non-interacting electrons, the resistance typically increases upon the …

Fermi surface topology and negative longitudinal magnetoresistance observed in the semimetal

B Shen, X Deng, G Kotliar, N Ni - Physical Review B, 2016 - APS
We report transverse and longitudinal magnetotransport properties of NbAs 2 single crystals.
Attributing to the electron-hole compensation, nonsaturating large transverse …