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Field-induced reentrant superconductivity driven by quantum tricritical fluctuations in URhGe

Authors :
H. Mayaffre
T. Hattori
Hironori Sakai
Shinsaku Kambe
Claude Berthier
S. Krämer
Marc-Henri Julien
Dai Aoki
Mladen Horvatić
Shingo Araki
Yo Tokunaga
Japan Atomic Energy Agency [Ibaraki] (JAEA)
Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI-G )
Institut National des Sciences Appliquées - Toulouse (INSA Toulouse)
Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3)
Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])
Department of Physics, University of Tokyo
The University of Tokyo (UTokyo)
Japan Atomic Energy Agency
KEK (High energy accelerator research organization)
Source :
Physica B: Condensed Matter, Physica B: Condensed Matter, Elsevier, 2018, 536, pp.122-124
Publication Year :
2018
Publisher :
HAL CCSD, 2018.

Abstract

We review our 59Co NMR study in a URhGe single crystal doped with 10% cobalt. The spin-spin relaxation time ( T 2 ) measurements have revealed a divergence of electronic spin fluctuations in the vicinity of a field-induced tricritical point (TCP) locating around 13 T. The fluctuations is developed in the same limited field region around the TCP as that where a reentrant superconductivity (RSC) is observed in URhGe. The finding strongly suggests these quantum fluctuations as the pairing glue responsible for the RSC.

Details

Language :
English
ISSN :
09214526
Database :
OpenAIRE
Journal :
Physica B: Condensed Matter, Physica B: Condensed Matter, Elsevier, 2018, 536, pp.122-124
Accession number :
edsair.doi.dedup.....b872efcdd34b5e5dfcf6a25ea8d6d217