Research output: Contribution to journal › Article › peer-review
Nuclear relaxation rate in layered superconductors with unconventional pairing. / Maleyev, S. V.; Yashenkin, A. G.; Aristov, D. N.
In: Physical Review B, Vol. 50, No. 18, 01.01.1994, p. 13825-13828.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Nuclear relaxation rate in layered superconductors with unconventional pairing
AU - Maleyev, S. V.
AU - Yashenkin, A. G.
AU - Aristov, D. N.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - The cubic temperature dependence of the nuclear relaxation rate (NRR) in layered superconductors with the order parameter having zeros at the Fermi surface (FS) is found to be universal under quite general conditions. The coefficient in the quasi-Korringa term for the NRR appearing at low temperatures due to impurity scattering is estimated. It is shown that an anisotropy of the gap function over the FS leads to the disappearance of the Hebel-Slichter coherence peak close to Tc. The corresponding analysis of the widely accepted model [D. Thelen et al., Phys. Rev. B 47, 9151 (1993)] for the Y-Ba-Cu-O system is presented.
AB - The cubic temperature dependence of the nuclear relaxation rate (NRR) in layered superconductors with the order parameter having zeros at the Fermi surface (FS) is found to be universal under quite general conditions. The coefficient in the quasi-Korringa term for the NRR appearing at low temperatures due to impurity scattering is estimated. It is shown that an anisotropy of the gap function over the FS leads to the disappearance of the Hebel-Slichter coherence peak close to Tc. The corresponding analysis of the widely accepted model [D. Thelen et al., Phys. Rev. B 47, 9151 (1993)] for the Y-Ba-Cu-O system is presented.
UR - http://www.scopus.com/inward/record.url?scp=0344729428&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.50.13825
DO - 10.1103/PhysRevB.50.13825
M3 - Article
AN - SCOPUS:0344729428
VL - 50
SP - 13825
EP - 13828
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 18
ER -
ID: 36121502