NDLI: Crystalline instability of Bi-2212 superconducting whiskers near room temperature

Content Provider	Springer Nature Link
Author	Poletti, Giulio Orsini, Francesco Marine, Massimo Cagliero, Stefa Truccato, Marco Agosti, Angelo Lascialfari, Alessandro Khan, Mohammad Mizanur Rahman
Copyright Year	2008
Abstract	We report new evidences for the thermodynamic instability of whisker crystals in the Bi–Sr–Ca–Cu–O (BSCCO) system. Annealing treatments at 90°C have been performed on two sets of samples, which were monitored by means of X-Rays Diffraction (XRD) and Atomic Force Microscopy (AFM) measurements, respectively. Two main crystalline domains of Bi2Sr2CuCa2O8+x (Bi-2212) were identified in the samples by the XRD data, which underwent an evident crystalline segregation after about 60 hours. Very fast dynamics of the surface modifications was also described by the AFM monitoring. Two typologies of surface structures formed after about 3 annealing hours: continuous arrays of dome shaped bodies were observed along the edges of the whiskers, while in the central regions a dense texture of flat bodies was found. These modifications are described in terms of the formation of simple oxide clusters involving a degradation of the internal layers.
Ending Page	484
Page Count	6
Starting Page	479
File Format	PDF
ISSN	09478396
e-ISSN	14320630
Journal	Applied Physics A
Issue Number	2
Volume Number	95
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-10-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Operating Procedures, Materials Treatment Optical and Electronic Materials Characterization and Evaluation of Materials Condensed Matter Surfaces and Interfaces, Thin Films Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Science

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