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arXiv · 1604.00900

Shallow-band superconductors: pushing superconductivity types apart

S. Wolf·A. Vagov·A. A. Shanenko·V. M. Axt·J. A. Aguiar
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Abstract

Magnetic response is a fundamental property of superconducting materials, which helps to distinguish two superconductivity types: the ideally diamagnetic type I and type II, which can develop the mixed state with Abrikosov vortices. We demonstrate that multi-band superconductors with one shallow band, that have recently attracted much attention for their high critical temperatures and unusual properties, often stay apart of this simple classification. In a wide range of microscopic parameters such systems fall into the inter-type or transitional interval in between the standard types and display unconventional mixed state configurations.

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S. Wolf, A. Vagov, A. A. Shanenko, V. M. Axt, J. A. Aguiar. 2016-04-04. Shallow-band superconductors: pushing superconductivity types apart. https://arxiv.org/abs/1604.00900

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