Phase Transition in NixCd(1-x)(NH3)2·Ni(CN)4·2C6H6
- 1 September 1974
- journal article
- research article
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 37 (3) , 645-651
- https://doi.org/10.1143/jpsj.37.645
Abstract
The magnetic phase transition in the antiferromagnetic Ising spin system diluted with non-magnetic atoms, Ni x Cd (1- x ) (NH 3 ) 2 ·Ni(CN) 4 ·2C 6 H 6 , was studied by the specific heat measurement. The dependence of the Néel point T N ( x ) on concentration x for Ni 2+ ions was obtained. The critical concentration x c , below which magnetic order did not exist, was 0.65. Broad maximum of the Schottky-type due to short range order was observed and the curve of specific heat at x c =0.65 was well fitted to the exact solution of the Ising linear chain model suggesting that the effective dimensionality of spin system was decreased by random dilution. The singular point of specific heat was reduced to a cusp by the effect of dilution.Keywords
This publication has 28 references indexed in Scilit:
- Solvable Decorated Ising Model with Superexchange InteractionPhysical Review B, 1973
- An introduction to percolation theoryAdvances in Physics, 1971
- Theory of Magnetically Dilute SystemsJournal of the Physics Society Japan, 1969
- New Approximate Method for Ising SystemJournal of the Physics Society Japan, 1968
- A Statistical Model for the Dilute FerromagnetProgress of Theoretical Physics, 1966
- On the magnetically dilute Heisenberg and Ising ferromagneticsMolecular Physics, 1963
- On the magnetically dilute Heisenberg and Ising ferromagneticsMolecular Physics, 1961
- On the magnetically dilute Heisenberg and Ising ferromagneticsMolecular Physics, 1961
- The behavior of magnetic systems with dilutionJournal of Physics and Chemistry of Solids, 1960
- Remarks on magnetically dilute systemsJournal of Physics and Chemistry of Solids, 1959