COMPETITION BETWEEN MAGNETIC ORDER AND SUPERCONDUCTIVITY IN CECU2.2SI2

Authors
LUKE GM KEREN A KOJIMA K LE LP STERNLIEB BJ WU WD UEMURA YJ ONUKI Y KOMATSUBARA T
Citation
Gm. Luke et al., COMPETITION BETWEEN MAGNETIC ORDER AND SUPERCONDUCTIVITY IN CECU2.2SI2, Physical review letters, 73(13), 1994, pp. 1853-1856
Citations number
22
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
73
Issue
13
Year of publication
1994
Pages
1853 - 1856
Database
ISI
SICI code
0031-9007(1994)73:13<1853:CBMOAS>2.0.ZU;2-B
Abstract
We describe muon spin relaxation measurements of the magnetic heavy fe rmion compound CeCu2.2Si2. Static magnetic order appears below about 1 K, most likely of spin glass nature. We find that the superconducting transition onsetting at 0.6 K partially destroys the magnetic state a nd that the magnetic volume fraction decreases within the superconduct ing state. This observation supports the idea that in CeCu2.2Si2, magn etic order and superconductivity compete with each other rather than c oexist.