New superconducting material found

Embargoed until: Publicly released: 2021-09-01 15:06

New Zealand; International

Peter nussbaumer - German Wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=443141

A paper in Science, from an international team including New Zealand, reports a new superconducting material that can withstand remarkably high magnetic fields - more than 25 times larger than what the standard theory predicts. This material, called CeRh2As2, appears to have a rare transition between two distinct superconducting states as a function of the magnetic field. There are only a handful of other materials where this has been reported.

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From:

Journal/
conference: Science

Research:Paper

Organisation/s: MacDiarmid Institute, Max Planck Institute, Germany; University of St Andrews, UK; University of Wisconsin-Milwaukee, USA; Technische Universität München, Germany

Funder: We acknowledge funding from the Physics of Quantum Materials department and the research group “Physics of Unconventional Metals and Superconductors (PUMAS)”of the Max Planck Society. C.G. and E.H. acknowledge support from the German Science Foundation (DFG) throughgrant GE 602/4-1 Fermi-NESt. P.M.R.B. was supported by the Marsden Fund Council from Government funding, managed byRoyal Society Te Apārangi. R.K. is supported by the DFG throughproject. no. KU 3287/1-1. D.F.A. was supported by the US Department of Energy, Office of Basic Energy Sciences, Divisionof Materials Sciences and Engineering, under award DE-SC0021971. The research environment in Dresden benefits fromthe DFG Excellence Cluster Complexity and Topology in Quantum Matter (ct.qmat)

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