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

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)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1963
Accession Number
AD0612237

Entities

People

  • C. R. K. Murty
  • D. R. Mcneely
  • H. Forstat
  • R. D. Spence

Organizations

  • Michigan State University

Tags

DTIC Thesaurus Topics

  • Ground State
  • Heat Capacity
  • Magnetic Resonance
  • Military Research
  • Neel Temperature
  • Nuclear Magnetic Resonance
  • Nuclear Resonance
  • Quantum Properties
  • Relaxation Time
  • Resonance
  • Spin Waves

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.