Quasiparticle damping of Josephson plasma mode in layered superconductors
Research Institute of Electrical Communication, 2-1-1, Katahira, Aoba-ku, Sendai 980-77, Japan
2 National Research Institute for Metals, 1-2-1 Sengen - Tsukuba 305, Japan
3 CREST, Japan Science and Technology Corporation - Japan
Accepted: 17 September 1998
We examine electronic dissipative properties of layered superconductors when the dc magnetic field is applied. Assuming a tunneling nature of the c-axis transport that consists of Josephson (JT) and quasiparticle (QT) parts, the non-stationary processes are considered. We obtain that in whole temperature range below Tc, the damping of the Josephson plasma mode is significantly determined by both JT and QT. Also we find that influence of the applied dc magnetic field on the Josephson plasma frequency is limited because only JT component is suppressed, while QT remains unaffected.
PACS: 74.20.-z – Theories and models of superconducting state / 74.72.-h – High-Tc compounds / 74.80.Dm – Superconducting layer structures: superlattices, heterojunctions, and multilayers
© EDP Sciences, 1998