HEAT CAPACITY AND ENTROPY OF CUC12 AND CRC12 FROM 11 TO 300 K. MAGNETIC ORDERING IN LINEAR CHAIN CRYSTALS
Abstract
The heat capacities of CuCl2 and CrCl2 have been measured between 11 and 300 K. The contributions to the entropy and heat capacity arising from the ordering of the magnetic moments are evaluated. Maxima in the heat capacity are found at 23.91 + or - 0.1 K for CuCl2 and 16.06 + or 0.05 K for CrCl2. Both compounds show gradual maxima in the magnetic contribution to the heat capacity at higher temperatures. By use of the Ising model to describe interactions within a chain and a molecular field to describe the secondary interactions, an approximate theoretical treatment is given. Smooth values of the heat capacity, entropy, enthalpy, and free energy are tabulated at selected temperatures. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1961
- Accession Number
- AD0262535
Entities
People
- J. W. Stout
- R. C. Chisholm
Organizations
- University of Chicago