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Nuclear spin-lattice relaxation and Knight shift in YBa2Cu4O8

✍ Scribed by Takato Machi; Izumi Tomeno; Takayuki Miyatake; Naoki Koshizuka; Shoji Tanaka; Takashi Imai; Hiroshi Yasuoka

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
315 KB
Volume
173
Category
Article
ISSN
0921-4534

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✦ Synopsis

The temperature dependences of the 63Cu nuclear spin-lattice relaxation rate 1 / T1 and Knight shift K in YBa2Cu4Os have been measured by nuclear quadrupole resonance (NQR) and nuclear magnetic resonance (NMR) techniques. In the normal state, both the 1/T~ for the Cu (2) sites and the in-plane component of the Knight shift K2 Β± increase rapidly with temperature from Tc up to about 250 K. Approximate T-linear temperature dependence of 1/Tl was observed in a wide temperature range between 250 and 680 K, that is in general accord with previous analyses.

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