Accession Number : AD0612237

Title :   NUCLEAR RESONANCE AND HEAT CAPACITY STUDIES OF ANTIFERROMAGNETIC LICUCL3.2H2O,

Corporate Author : MICHIGAN STATE UNIV EAST LANSING

Personal Author(s) : Spence,R. D. ; Forstat,H. ; Murty,C. R. K. ; McNeely,D. R.

Report Date : 1963

Pagination or Media Count : 2

Abstract : The Li(7) and proton nuclear magnetic resonance in LiCuCl3.2H2O shows this compound to be antiferromagnetic below 4.46=0.02K. 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 (2S+1) if the ground state spin of the magnetic ion is taken as 1/2. (Author)

Descriptors :   (*LITHIUM COMPOUNDS, ANTIFERROMAGNETISM), (*ANTIFERROMAGNETISM, LITHIUM COMPOUNDS), (*NUCLEAR MAGNETIC RESONANCE, LITHIUM COMPOUNDS), (*SPECIFIC HEAT, LITHIUM COMPOUNDS), COPPER COMPOUNDS, CHLORIDES, HYDRATES, CRYOGENICS, CRYSTAL LATTICES, ENTROPY, NUCLEAR SPINS, PROTONS, RELAXATION TIME

Distribution Statement : APPROVED FOR PUBLIC RELEASE