Unusual temperature dependence of the London penetration depth in all-organic beta ''-(ET)(2)SF5CH2CF2SO3 single crystals - art. no. 052506

Authors
Prozorov, R Giannetta, RW Schlueter, J Kini, AM Mohtasham, J Winter, RW Gard, GL
Citation
R. Prozorov et al., Unusual temperature dependence of the London penetration depth in all-organic beta ''-(ET)(2)SF5CH2CF2SO3 single crystals - art. no. 052506, PHYS REV B, 6305(5), 2001, pp. 2506
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6305
Issue
5
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010201)6305:5<2506:UTDOTL>2.0.ZU;2-S
Abstract
The temperature dependence of the in-plane, lambda (parallel to)(T), and in terplane, lambda (perpendicular to)(T). London penetration depth was measur ed in the metal-free all-organic superconductor beta"-(ET)(2)SF5CH2CF2SO3 ( T(c)approximate to5.2 K). Delta lambda (parallel to)(T)proportional toT(3) up to 0.5 T-c, a power law previously observed only in materials thought to be p-wave superconductors. lambda (perpendicular to), is larger than the s ample dimensions down to the lowest temperatures (0.35 K), implying an anis otropy of lambda (perpendicular to)/lambda (parallel to)approximate to 400- 800.