ANOMALOUS MAGNETIZATION OF BA1-XKXBIO3-CRYSTALS WITH SPATIAL NONSTOICHIOMETRY FOR OXYGEN(Y SINGLE)

Authors
BARILO SN GATALSKAYA VI SHIRYAEV SV SHESTAC AS KUROCHKIN LA SMIRNOVA TV KOYAVA VT ORLOVA NS PUSHKAREV AV
Citation
Sn. Barilo et al., ANOMALOUS MAGNETIZATION OF BA1-XKXBIO3-CRYSTALS WITH SPATIAL NONSTOICHIOMETRY FOR OXYGEN(Y SINGLE), Physica. C, Superconductivity, 254(1-2), 1995, pp. 181-188
Citations number
28
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
254
Issue
1-2
Year of publication
1995
Pages
181 - 188
Database
ISI
SICI code
0921-4534(1995)254:1-2<181:AMOBWS>2.0.ZU;2-A
Abstract
The peak effect in the magnetization of Ba1-xKxBiO3+y (x greater than or equal to 0.33) single crystals has been first found and investigate d by means of a vibrational sample magnetometer at the applied field u p to 6 T over the temperature range from 4.2 to 25 K. The location and width of the peak is determined by the temperature and annealing proc ess in various media. The data obtained show that the anomalous magnet ization may be caused by the additional pinning of vortices by the reg ions with overstoichiometric oxygen content.