Superconducting crystallite interfaces with Tc up to 21 K in Bi and Bi-Sb bicrystals of inclination type

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A.; CHISTOL, V.

Superconducting crystallite interfaces with Tc up to 21 K in Bi and Bi-Sb bicrystals of inclination type

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A.; CHISTOL, V.

URI: https://doi.org/10.1016/j.ssc.2008.05.024
http://repository.utm.md/handle/5014/17640

Date: 2008

Abstract:

Magnetic properties of high quality Bi and Bi1−x–Sbx (x≤0.07) bicrystals of inclination type were studied in the temperature range (1.8–30) K using a quantum design SQUID magnetometer. It is found that the crystallite interfaces of some of these bicrystals show clear evidence for a superconducting transition at much higher critical temperatures (- 21 K) than other Bi nanoobjects.