Full text loading...
“Zero-field” resistivity as a function of temperature for the nanocrystalline and polycrystalline samples of . Insets (a) and (b) highlight the and power law variations in the temperature intervals and in and , respectively. Insert (a) also displays a sudden drop in the resistivity of at .
Longitudinal magetoresistance vs magnetic field isotherms at a few selected temperatures for and . The inset shows the enlarged view of some of these isotherms at low fields.
Temperature variations of at a few selected fields for and . The insets (a) and (b) present an enlarged view of at a few fixed fields in within the temperature intervals of and , respectively.
Temperature variations of “zero-field” and “in-field” resistivities for in the temperature range from at a few fixed field values in the low-field region. Inset shows that the upper critical field, , varies linearly with temperature, as is normally observed in a type II superconductor.
Article metrics loading...