TY  - JOUR
AU  - Kardakova, A.
AU  - Shishkin, A.
AU  - Semenov, A.
AU  - Goltsman, G. N.
AU  - Ryabchun, S.
AU  - Klapwijk, T. M.
AU  - Bousquet, J.
AU  - Eon, D.
AU  - Sacépé, B.
AU  - Klein, T.
AU  - Bustarret, E.
PY  - 2016
DA  - 2016//
TI  - Relaxation of the resistive superconducting state in boron-doped diamond films
T2  - Phys. Rev. B
JO  - Phys. Rev. B
SP  - 064506
VL  - 93
IS  - 6
KW  - boron-doped diamond films
KW  - resistive superconducting state
KW  - relaxation time
AB  - We report a study of the relaxation time of the restoration of the resistive superconducting state in single crystalline boron-doped diamond using amplitude-modulated absorption of (sub-)THz radiation (AMAR). The films grown on an insulating diamond substrate have a low carrier density of about 2.5×1021cm−3 and a critical temperature of about 2K. By changing the modulation frequency we find a high-frequency rolloff which we associate with the characteristic time of energy relaxation between the electron and the phonon systems or the relaxation time for nonequilibrium superconductivity. Our main result is that the electron-phonon scattering time varies clearly as T−2, over the accessible temperature range of 1.7 to 2.2 K. In addition, we find, upon approaching the critical temperature Tc, evidence for an increasing relaxation time on both sides of Tc.
SN  - 2469-9950
UR  - https://link.aps.org/doi/10.1103/PhysRevB.93.064506
UR  - https://doi.org/10.1103/PhysRevB.93.064506
DO  - 10.1103/PhysRevB.93.064506
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1167), last updated on Fri, 30 Apr 2021 22:39:23 -0500
ID  - Kardakova_etal2016
ER  -