Electronic Resource
Springer
The European physical journal
230 (1970), S. 99-107
ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract An expression for the free energy of thes-d-exchange Hamiltonian for the caseS=1/2 is derived using Tomonaga's model for the description of the free electrons. Thereby a formal equivalence can be established to the thermodynamics of a classical gas of charged particles distributed on a ring with alternating charges interacting via a log sin-potential. Although we are unable to calculate the free energy in a closed form, the result clearly indicates that as the exchange interaction changes sign the behavior of the free energy is changed significantly for low temperatures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01394619
Permalink
Library |
Location |
Call Number |
Volume/Issue/Year |
Availability |