Magnetic Moment Peculiarities in Bismuth Bicrystals with Large Crystallite Disorientation Angles
Muntyanu, F. M. · Gilewski, A. · Nenkov, K. · Warchulska, J. · Zaleski, A. J.
Original · EN
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.
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