Low temperature singularities of electron density in a two-gap superconductor ZrB12

Two-band superconductors exhibit a distinct phase characterized by two correlation lengths, one smaller and the other larger than the magnetic field penetration length. This regime was coined type-1.5 superconductivity, with several unconventional properties, such as vortex clustering. However, a fully microscopic solution for vortex clusters has remained challenging due to computational complexities beyond quasiclassical models. This work presents numerical solutions obtained in a fully self-consistent two-band Bogoliubov–de Gennes model. We show the presence of discrepant correlation lengths leading to vortex clustering in two-band superconductors. Published by the American Physical Society 2024

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Electronic Phase Transitions in Heavy-Fermion CeB6 Compound

Khrykina,

Bolotina,

Gridchina

et al. 2024

Jetp Lett.

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Low temperature singularities of electron density in a two-gap superconductor ZrB12

Cited by 4 publications

References 34 publications

Evidence for nanosized magnetic clusters of Ce-ions in the archetypal heavy fermion metal CeB6

Evidence for nanosized magnetic clusters of Ce-ions in the archetypal heavy fermion metal CeB6

Microscopic solutions for vortex clustering in two-band type-1.5 superconductors

Electronic Phase Transitions in Heavy-Fermion CeB6 Compound

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