Study of vortex dynamics in an a-MoGe thin film using low-frequency two-coil mutual inductance measurements

We extract the vortex lattice parameters using low-frequency two-coil mutual inductance measurements in a 20-nm-thick superconducting a-MoGe thin film. We fit the temperature dependence of ac penetration depth in the mixed state using a model developed by Coffey and Clem and demonstrate a procedure...

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Bibliographic Details
Published inarXiv.org
Main Authors Mandal, Soumyajit, Basistha, Somak, Jesudasan, John, Vivas Bagwe, Raychaudhuri, Pratap
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 08.11.2022
Subjects
Coils
Drag coefficients
Inductance
Lattice parameters
Penetration depth
Physics - Superconductivity
Pinning
Temperature dependence
Thin films
Vortices
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Summary:We extract the vortex lattice parameters using low-frequency two-coil mutual inductance measurements in a 20-nm-thick superconducting a-MoGe thin film. We fit the temperature dependence of ac penetration depth in the mixed state using a model developed by Coffey and Clem and demonstrate a procedure for extracting vortex lattice parameters such as pinning constant, vortex lattice drag coefficient, and pinning potential barrier. We show that the extracted parameters follow the magnetic field variation expected for a weakly pinned 2-dimensional vortex lattice.
ISSN:2331-8422
DOI:10.48550/arxiv.2211.04276