Crystal Field Theory of Magnetic Behaviour of Er_{2}(SO_{4})_{3}·8H_{2}O

• Authors: R. Gupta , U. Ghosh , C. Basu
• Languages of publication: EN

Abstracts

EN

Using the most rigorous approach of direct diagonalization of the Hamiltonian matrix constructed in the complete basis states (364 in number) of the Er^{3+} ion the observed magnetic susceptibility and anisotropy data of erbium sulphate octahydrate were simulated and the set of crystal field parameters was evaluated. This procedure automatically includes the effect of intermediate coupling and the J-mixing under the crystal field. It was also demonstrated that such rigorous calculation using complete basis states is necessary in order to evaluate the correct set of parameters which may widely differ from the values obtained from approximate calculations previously performed using partial number of basis states of the ion concerned.

Keywords

EN

71.70.Ch; 75.10.Dg

Discipline

• 71.70.Ch: Crystal and ligand fields
• 75.10.Dg: Crystal-field theory and spin Hamiltonians(see also 71.70.Ch Crystal and ligand fields)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 89
• Issue: 5-6
• Pages: 649-655

Dates

published

1996-05

received

1995-09-19

(unknown)

1996-02-07

Contributors

author

R. Gupta

• Department of Solid Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta - 700032, India

author

U. Ghosh

• Department of Solid Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta - 700032, India

author

C. Basu

• Department of Solid Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta - 700032, India

Identifiers

DOI

10.12693/APhysPolA.89.649