In:
Acta Physica Sinica, Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, Vol. 50, No. 12 ( 2001), p. 2466-
Kurzfassung:
Magnetic hysteresis loops were measured on Bi2Sr2CaCu2O8 single crystals with a vibrating sample magnetometer. An anomalous second magnetization peak was observed between 20 and 40K. The magnetic fields showing peak effect in over-doped crystal were observed to be higher than the optimally doped samples. The disorder-driven transition shifted to lower fields with increasing point disorder. At lower temperatures the quasilattice transformed into a disordered solid as the field was increased above the second magnetization peak. There was not any transition from the ordered solid quasilattice to a disordered solid below 20K in schematic vortex matter phase diagram in BSCCO. The peak effect was a complicated function of magnetic field, temperature and material disorder.
Materialart:
Online-Ressource
ISSN:
1000-3290
,
1000-3290
Sprache:
Unbekannt
Verlag:
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Publikationsdatum:
2001
