Ferromagnetic- and superconducting-like behavior of graphite

Citation
Y. Kopelevich et al., Ferromagnetic- and superconducting-like behavior of graphite, J L TEMP PH, 119(5-6), 2000, pp. 691-702
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LOW TEMPERATURE PHYSICS
ISSN journal
00222291 → ACNP
Volume
119
Issue
5-6
Year of publication
2000
Pages
691 - 702
Database
ISI
SICI code
0022-2291(200006)119:5-6<691:FASBOG>2.0.ZU;2-G
Abstract
We have identified ferromagnetic- and superconducting-like magnetization hy steresis loops in highly oriented pyrolytic graphite samples below and abov e room temperature. We also found that both behaviors are very sensitive to low-temperature. We also found that both behaviors are very sensitive to l ow-temperature as compared to the sample synthesis temperature heat treatme nt. The possible contribution of magnetic impurities and why these do not a ppear to be the reason for the observed phenomena is discussed.