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arXiv · 1803.01637

Observation of a superconducting glass state in granular superconducting diamond

G. M. Klemencic·J. M. Fellows·J. M. Werrell·S. Mandal·S. R. Giblin·R. A. Smith·O. A. Williams
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Abstract

The magnetic field dependence of the superconductivity in nanocrystalline boron doped diamond thin films is reported. Evidence of a glass state in the phase diagram is presented, as demonstrated by electrical resistance and magnetic relaxation measurements. The position of the phase boundary in the H-T plane is determined from resistance data by detailed fitting to zero-dimensional fluctuation conductivity theory. This allows determination of the boundary between resistive and non-resistive behavior to be made with greater precision than the standard ad hoc onset/midpoint/offset criterion.

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G. M. Klemencic, J. M. Fellows, J. M. Werrell, S. Mandal, S. R. Giblin, R. A. Smith, O. A. Williams. 2018-03-05. Observation of a superconducting glass state in granular superconducting diamond. https://arxiv.org/abs/1803.01637

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