EXPERIMENTAL-EVIDENCE FOR A GENERALIZED FFLO STATE IN CLEAN TYPE-II SUPERCONDUCTORS WITH SHORT COHERENCE LENGTH AND ENHANCED PAULI SUSCEPTIBILITY

Authors
STEGLICH F MODLER R GEGENWART P DEPPE M WEIDEN M LANG M GEIBEL C LUHMANN T PAULSEN C THOLENCE JL ONUKI Y TACHIKI M TAKAHASHI S
Citation
F. Steglich et al., EXPERIMENTAL-EVIDENCE FOR A GENERALIZED FFLO STATE IN CLEAN TYPE-II SUPERCONDUCTORS WITH SHORT COHERENCE LENGTH AND ENHANCED PAULI SUSCEPTIBILITY, Physica. C, Superconductivity, 263(1-4), 1996, pp. 498-504
Citations number
34
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
263
Issue
1-4
Year of publication
1996
Pages
498 - 504
Database
ISI
SICI code
0921-4534(1996)263:1-4<498:EFAGFS>2.0.ZU;2-P
Abstract
We report an investigation of the magnetic and dilatometric properties of single crystals of the superconductors UPd2Al3 and CeRu2, both com pounds exhibiting enhanced spin susceptibilities. Our results suggest for both systems a first-order transition between weak and strong pinn ing at T < 0.9T(c), somewhat below H-c2(T). We argue that these observ ations are compatible with a staggered order parameter due to the form ation of a ''generalized Fulde-Ferrell-Larkin-Ovchinnikov state''.