Citation
Nj. Curro et al., Anomalous NMR magnetic shifts in CeCoIn5 - art. no. 180514, PHYS REV B, 6418(18), 2001, pp. 0514
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829
→ ACNP
Volume
6418
Issue
18
Year of publication
2001
Database
ISI
SICI code
0163-1829(20011101)6418:18<0514:ANMSIC>2.0.ZU;2-V
Abstract
We report In-115 and Co-59 nuclear magnetic resonance (NMR) measurements in
the heavy fermion superconductor CeCoIn5 above and below T-c. The hyperfin
e couplings of the In-115 and Co-59 are anisotropic and exhibit dramatic ch
anges below 50 K due to changes in the crystal field level populations of t
he Ce ions. suggesting localized f electrons. Below T-c the spin susceptibi
lity is suppressed, indicating singlet pairing.