Analog of the Intertype Superconductivity in Nanostructured Materials
Abstract
Magnetization hysteresis loops of tin samples with an inverted opal structure are presented. The sample formed by tin particles with the size of 70 and 128 nm is found to be a type-I superconductor. The tin sample formed by 80 and 42 nm particles demonstrates an analog of intertype superconductivity: features of both type-I and II superconductors are observed on the magnetization isothermal curves. Behaviors of the irreversible and reversible magnetization support coexistence of type-I and II superconducting nanoparticles in this sample.
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