Sample size dependence of vortex penetration and the second magnetization peak in Bi2Sr2CaCu2O8+delta

Authors
Wang, YM Zettl, A Tamegai, T Ooi, S
Citation
Ym. Wang et al., Sample size dependence of vortex penetration and the second magnetization peak in Bi2Sr2CaCu2O8+delta, PHYSICA C, 341, 2000, pp. 1109-1110
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
2
Pages
1109 - 1110
Database
ISI
SICI code
0921-4534(200011)341:<1109:SSDOVP>2.0.ZU;2-6
Abstract
Local magnetization measurements of Bi2Sr2CaCu2O8+delta single crystals wit h various shape and size were performed using a local GaAs/AlGaAs Hall prob e. The vortex penetration field is proportional to the -1/4 power of the sa mple area, independent of sample geometry. The second magnetization peak (S MP) is observed only below a size dependent temperature, which may not supp ort the 2D-3D vortex solid transition as the intrinsic origin of the SMP.