Indication of superconductivity at 35 K in graphite-sulfur composites - art. no. 147001

Authors
da Silva, RR Torres, JHS Kopelevich, Y
Citation
Rr. Da Silva et al., Indication of superconductivity at 35 K in graphite-sulfur composites - art. no. 147001, PHYS REV L, 8714(14), 2001, pp. 7001
Citations number
26
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8714
Issue
14
Year of publication
2001
Database
ISI
SICI code
0031-9007(20011001)8714:14<7001:IOSA3K>2.0.ZU;2-Q
Abstract
We report magnetization measurements performed on graphite-sulfur composite s which demonstrate a clear superconducting behavior below the critical tem perature T-c0 = 35 K. The Meissner-Ochsenfeld effect, screening supercurren ts, and magnetization hysteresis loops characteristic of type-II supercondu ctors were measured. The results indicate that the superconductivity occurs in a small sample fraction, possibly related to the sample surface.