- Author
- Date
- 15-3-2017
- Title
- Superconducting and ferromagnetic phase diagram of UCoGe probed by thermal expansion
- Journal
- Physical Review B
- Volume | Issue number
- 95 | 11
- Article number
- 115151
- Number of pages
- 7
- Document type
- Article
- Faculty
- Faculty of Science (FNWI)
- Institute
- Van der Waals-Zeeman Institute (WZI)
- Abstract
-
We report thermal expansion measurements on a single crystal of the superconducting ferromagnet UCoGe for magnetic fields applied along the main orthorhombic axes. The thermal expansion cell was mounted on a piezoelectric rotator in order to fine-tune the magnetic field angle. The superconducting and magnetic phase diagram has been determined. With our bulk technique we confirm the S shape of the upper-critical field, Bc2 , for B ∥ b and reinforcement of superconductivity above 6 T. At the same time the Curie point shifts towards lower temperatures on increasing the field along the b axis. This lends further support to theoretical proposals of spin-fluctuation-mediated reinforcement of superconductivity for B ∥ b.
- URL
- go to publisher's site
- Other links
- Link to publication in Scopus
- Language
- English
- Note
- ©2017 American Physical Society
- Persistent Identifier
- https://hdl.handle.net/11245.1/a8599f73-ff72-4fb0-81c8-4fca15fa9d21
- Downloads
-
PhysRevB.95(Final published version)
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