Chapter
63Cu and 17O Nuclei Spin-Lattice Relaxation in Y1−xCaxBa2Cu4O8
Abstract
The temperature dependences of the 63Cu and 17O nuclei spin-lattice relaxation rate 63(1/T1) and 17(1/T1) in YBa2Cu4O8 have been measured by the nuclear quadrupole resonance(NQR) and nuclear magnetic resonance(NMR) techniques, respectively. The frequency spectra in Y1−xCaxBa2Cu4O8 (x=0, 0.025, 0.075) and 63(1/T1) in the case of x=0, 0.075 were also measured. From the frequency spectra, we conclude that the Ca ions substitute for Y sites rather …
Authors
Machi T; Tomeno I; Miyatake T; Tai K; Koshizuka N; Hayashi A; Ueda Y; Imai T; Yasuoka H
Book title
Advances in Superconductivity IV
Pagination
pp. 115-118
Publisher
Springer Nature
Publication Date
1992
DOI
10.1007/978-4-431-68195-3_22