Jpn. J. Appl. Phys. 26 (1987) Supplement 26-3-1 pp. 533-534  |Previous Article| |Next Article|  |Table of Contents|
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Proc. 18th Int. Conf. Low Temperature Physics, Kyoto, 1987

NMR and PQR Studies on Magnetic Properties of RCu₆ (R=Ce, Nd and Sm)

K. Kumagai, I. Watanabe, H. Nakajima, Y. Onuki¹ and T. Komatsubara¹

Pulsed NMR and PQR techniques are used to investigate magnetic relaxation and internal fields due to electric quadruple and hyperfine interactions of RCu₆ (R=Ce, Nd and Sm) in the magnetically ordered and paramagnetic states. We found 5 PQR spectra Cu between 3 and 20MHz and one unshifted NMR spectrum, corresponding to the 6 crystallographlcally inequivalent sites of Cu in RCu₆. Longitudinal relaxation rates of ⁶³Cu of PQR in SmCu₆ and NdCu₆ are enhanced by fluctuations of the magnetic moments and seems to be diverge at T_N whereas T₁ of the unshifted NMR spectrum is comparable to that in the non-magnetic LaCu₆.

URL: http://jjap.jsap.jp/link?JJAPS/26S3/533/