Direct Simulations of the Quantum Model for CsNiF_{3}

• Authors: A. Caramico D'Auria , F. Esposito , U. Esposito , G. Kamieniarz , R. Dekeyser
• Languages of publication: EN

Abstracts

EN

We address the problem of reliability of a finite-chain technique for CsNiF_{3}. We investigate the effect of the boundary conditions, completely neglected so far, and apply a new extrapolation procedure appropriate for quantities showing non-monotonic behaviour. From a detailed analysis of the specific heat existing theoretical estimates for the model parameters are discriminated and a strong evidence for the reliability of the direct finite-chain technique predictions is presented.

Keywords

EN

64.60.Cn; 75.10.Dg; 75.10.Jm; 75.40.Cx; 75.40.Mg

Discipline

• 75.40.Mg: Numerical simulation studies
• 75.40.Cx: Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
• 75.10.Dg: Crystal-field theory and spin Hamiltonians(see also 71.70.Ch Crystal and ligand fields)
• 75.10.Jm: Quantized spin models, including quantum spin frustration
• 64.60.Cn: Order-disorder transformations(see also 81.30.Hd Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder in materials science; for effects of disorder on superconducting transition temperature, see 74.62.En)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1994
• Volume: 85
• Issue: 2
• Pages: 409-412

Dates

published

1994-02

Contributors

author

A. Caramico D'Auria

• Dipartimento di Scienze Fisiche, Universitá di Napoli, Piazzale Tecchio, Napoli, Italy

author

F. Esposito

• Dipartimento di Scienze Fisiche, Universitá di Napoli, Piazzale Tecchio, Napoli, Italy

author

U. Esposito

• Dipartimento di Scienze Fisiche, Universitá di Napoli, Piazzale Tecchio, Napoli, Italy

author

G. Kamieniarz

• Institute of Theoretical Physics, University of Leuven, Celestijnenlaan 200D, Leuven, Belgium

author

R. Dekeyser

• Institute of Theoretical Physics, University of Leuven, Celestijnenlaan 200D, Leuven, Belgium

Identifiers

DOI

10.12693/APhysPolA.85.409