Fermiology and evidence of conventional superconductivity in the type-II Dirac semimetal PdTe<sub>2</sub>

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APS March Meeting 2019

Volume 64, Number 2

Monday–Friday, March 4–8, 2019; Boston, Massachusetts

Session H04: Dirac/Weyl Semimetals -- Type-II Topological Semimetals

2:30 PM–5:06 PM, Tuesday, March 5, 2019
BCEC Room: 107C

Sponsoring Unit: DMP
Chair: Rongying Jin, Louisiana State University

Abstract: H04.00006 : Fermiology and evidence of conventional superconductivity in the type-II Dirac semimetal PdTe₂

3:54 PM–4:06 PM

Abstract

Presenter:

Amit Vashist
(Department of Physical Sciences, Indian Institute of Science Education and Research, Mohali)

Authors:

Amit Vashist
(Department of Physical Sciences, Indian Institute of Science Education and Research, Mohali)

Radha Krishna Gopal
(Department of Physical Sciences, Indian Institute of Science Education and Research, Mohali)

Yogesh Singh
(Department of Physical Sciences, Indian Institute of Science Education and Research, Mohali)

We use electrical transport and heat capacity measurements on high-quality single crystals of the recently discovered superconducting type-II Dirac semimetal PdTe₂, to probe the nature of its superconducting phase. The magnitude of the electronic heat-capacity anomaly at Tc, the low temperature exponential T dependence of the heat capacity, the linear H dependence of the T = 0 electronic Somerfield coefficient, and a conventional H − T phase diagram establish that the superconductivity in PdTe₂ is conventional in nature despite the presence of a topologically nontrivial Fermi surface band, which contributes to the electrical conduction. The Fermi surface of PdTe₂ is investigated by the dHvA oscillations.

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Bulletin of the American Physical Society

APS March Meeting 2019

Volume 64, Number 2

Monday–Friday, March 4–8, 2019; Boston, Massachusetts

Session H04: Dirac/Weyl Semimetals -- Type-II Topological Semimetals

Abstract: H04.00006 : Fermiology and evidence of conventional superconductivity in the type-II Dirac semimetal PdTe2

Presenter:

Authors:

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Abstract: H04.00006 : Fermiology and evidence of conventional superconductivity in the type-II Dirac semimetal PdTe₂