|
Title
|
|
|
|
Superconductivity on the border of weak itinerant ferromagnetism in UCoGe
| |
|
Author
|
|
|
|
| |
|
Abstract
|
|
|
|
| We report the coexistence of ferromagnetic order and superconductivity in UCoGe at ambient pressure. Magnetization measurements show that UCoGe is a weak ferromagnet with a Curie temperature T-C=3 K and a small ordered moment m(0)=0.03 mu(B). Superconductivity is observed with a resistive transition temperature T-s=0.8 K for the best sample. Thermal-expansion and specific-heat measurements provide solid evidence for bulk magnetism and superconductivity. The proximity to a ferromagnetic instability, the defect sensitivity of T-s, and the absence of Pauli limiting, suggest triplet superconductivity mediated by critical ferromagnetic fluctuations. |
| |
|
Language
|
|
|
|
English
| |
|
Source (journal)
|
|
|
|
Physical review letters. - New York, N.Y., 1958, currens
| |
|
Publication
|
|
|
|
New York, N.Y.
:
American Physical Society
,
2007
| |
|
ISSN
|
|
|
|
0031-9007
[print]
1079-7114
[online]
| |
|
DOI
|
|
|
|
10.1103/PHYSREVLETT.99.067006
| |
|
Volume/pages
|
|
|
|
99
:6
(2007)
, p. 1-4
| |
|
Article Reference
|
|
|
|
067006
| |
|
ISI
|
|
|
|
000248664700055
| |
|
Pubmed ID
|
|
|
|
17930860
| |
|
Medium
|
|
|
|
E-only publicatie
| |
|
Full text (Publisher's DOI)
|
|
|
|
| |
|