Volume 142, Number 3, May 2023
|Number of page(s)||6|
|Section||Condensed matter and materials physics|
|Published online||02 May 2023|
Superconductivity in the thorium nickel borocarbide ThNiBC
1 School of Physics, Interdisciplinary Center for Quantum Information, and State Key Lab of Silicon Materials, Zhejiang University - Hangzhou, 310058, PRC
2 School of Science, Westlake University - 18 Shilongshan Road, Hangzhou, 310064, PRC
3 Collaborative Innovation Centre of Advanced Microstructures, Nanjing University - Nanjing, 210093, PRC
(a) E-mail: email@example.com
(b) E-mail: firstname.lastname@example.org (corresponding autor)
Received: 14 February 2023
Accepted: 18 April 2023
We report on the synthesis, crystal structure, physical properties, and first-principles calculations of a new borocarbide ThNiBC. The new compound was synthesized by an arc-melting method, crystallizing in a tetragonal LuNiBC-type structure with an exceptionally low axial ratio of . The physical property measurements indicate that it is a Pauli-paramagnetic metal with significant electron-electron scattering. Bulk superconductivity at Tc = 0.7 K is demonstrated with zero electrical resistivity, Meissner effect, and specific-heat jump. The first-principles calculations reveal a relatively low density of states at the Fermi level with multiple electron-type Fermi surfaces.
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