ISSN:
1434-6036
Keywords:
PACS. 74.25.Ha Magnetic properties – 74.72.Hs Bi-based cuprates
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: A melt-cast Bi 2 Sr 2 CaCu 2 O 8 sample showing the paramagnetic Meissner effect (PME) and an ageing phenomenon has been studied by magnetic relaxation and ac-susceptibility experiments. A memory behaviour is observed in the low frequency ac-suscpetibility and in the magnetisation vs. temperature curves measured on heating after certain cooling protocols. It is also found that large enough temperature shifts and positive temperature perturbations cause rejuvenation of the ageing system. All these observations show striking similarities with the ageing behaviour of spin glasses and indicate the existence of a low temperature glassy phase in this PME material.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/PL00011143
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