Magnetic properties and superconductivity of nano-width crystallite interfaces of bicrystals and tricrystals of Bi1−x -Sb x (x ≤ 0.2) alloys

Autor: A. J. Zaleski, A. Gilewski, V. Chistol, K. Nenkov, F. M. Muntyanu
Rok vydání: 2011
Předmět:
Zdroj: physica status solidi (b). 248:2903-2907
ISSN: 0370-1972
Popis: The magnetic properties of bicrystals and tricrystals of Bi1−x–Sbx (x ≤ 0.2) alloys were studied in a temperature range of 1.8–100 K. The ferromagnetic-like hysteresis loops are found in tricrystals and some bicrystals. We revealed that nano-width crystallite interfaces (∼100 nm) exhibit superconducting behavior, whereas the single crystalline samples are not superconducting. The onset of superconducting transition (∼36 K) in some of these interfaces considerably exceeds the values of other semimetal nanoobjects.
Databáze: OpenAIRE