Flux pinning and improved critical current density in superconducting boron doped diamond films
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2018-03-02 |
| Journal | Journal of Physics Communications |
| Authors | Dinesh Kumar, Shibnath Samanta, K. Sethupathi, M. S. Ramachandra Rao |
| Institutions | Indian Institute of Technology Madras |
| Citations | 10 |
Abstract
Section titled âAbstractâThe ability to carry transport current in a magnetic field is the most important aspect of a superconductor. We present a detailed analysis of the upper critical field (Hc2(0)) and vortex dynamics in superconducting boron doped diamond (BDD) films. Hc2(0) measured on the samples of different doping levels revealed a high critical field of up to 7.3 T. Pinning potential U0, estimated using thermally activated flux-flow (TAFF) model shows that U0 is of the order of 102 K. Self-field critical current density (Jc) estimated for the superconducting BDD films showed large Jc âź 107 A/cm2 due to enhanced flux trapping.