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NUCLEAR RESONANCE AND HEAT CAPACITY STUDIES OF ANTIFERROMAGNETIC LICUCL3.2H2O,
MICHIGAN STATE UNIV EAST LANSING
The Li7 and proton nuclear magnetic resonance in LiCuCl3.2H2O shows this compound to be antiferromagnetic below 4.460.02K. The local fields at the Li and H sites indicate that the magnetic symmetry group must be one of three possible types. The sublattice magnetization and spin lattice relaxation time vary more rapidly with temperature than indicated by spin wave theory. Measurements were also made on the heat capacity of LiCuCl3.2H2O, yielding a Neel temperature of 4.40.02K. The entropy change associated with the magnetic ordering process was calculated. This change agrees within 2 of the theoretical value, Rln 2S1 if the ground state spin of the magnetic ion is taken as 12. Author
Pub. in Physical Society of Japan. Journal, v17 supl B-I p510-11 1962 (Copies available only to DDC users). Research supported in part by the Office of Naval Research, Washington, D. C.
AF49 638 613