TY - JOUR
T1 - Cu63 NMR Study of Superconducting Cu/Nb Superlattice
AU - Aoki, R.
AU - Zheng, G. Q.
AU - Kohori, Y.
AU - Oda, Y.
AU - Asayama, K.
AU - Wada, S.
AU - Obi, Y.
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1987/1
Y1 - 1987/1
N2 - Nuclear spin lattice relaxation time T1 of Cu63 was measured for Cu/Nb multilayered sample, in each 50 layers of Cu and Nb with thicknesses of 400 Å and 245 Å. The superconducting transition was observed by magnetic induction at Tc=4.6 K. As temperature T is lowered below Tc, the relaxation rate T1-1 is once increased and then decreased exponentialy. This behavior is characterized by the existence of superconducting energy gap 2Δ=0.96 meV=2.4 kBTc in Cu. For further lowering of T below 0.8 K, the rapid decreasing in T1-1 was replaced by a gradual change almost proportional to T.
AB - Nuclear spin lattice relaxation time T1 of Cu63 was measured for Cu/Nb multilayered sample, in each 50 layers of Cu and Nb with thicknesses of 400 Å and 245 Å. The superconducting transition was observed by magnetic induction at Tc=4.6 K. As temperature T is lowered below Tc, the relaxation rate T1-1 is once increased and then decreased exponentialy. This behavior is characterized by the existence of superconducting energy gap 2Δ=0.96 meV=2.4 kBTc in Cu. For further lowering of T below 0.8 K, the rapid decreasing in T1-1 was replaced by a gradual change almost proportional to T.
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U2 - 10.7567/JJAPS.26S3.1455
DO - 10.7567/JJAPS.26S3.1455
M3 - Article
AN - SCOPUS:70350322649
VL - 26
SP - 1455
EP - 1456
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - S3-2
ER -