Magnetic Moment Peculiarities in Bismuth Bicrystals with Large Crystallite Disorientation Angles

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Magnetization measurements prove that the magnetic properties of large-angle (theta > 30o) bismuth bicrystals with crystallite interface (CI) of twisting type essentially differ from well-known results on single-crystalline specimens. Two superconducting phases were observed at CI of bicrystals (ordinary rhombohedral Bi is not a superconductor). It was shown that one of them (phase with Tc ~ 8,4 K) is localized in central part of crystallite interface. It was also found that in adjacent layers (width of layer d2 ~ 20 nm) of CI the proximity effect is significant.
10 pages, 3 figures

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/26466

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0506107
 http://arxiv.org/abs/cond-mat/0506107

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arXiv