Transfer-Matrix Simulations of Linear Magnetic Systems

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

Abstracts

EN

The quantum transfer-matrix method was applied to study the finite-temperature static properties of the spin S=1 antiferromagnetic Heisenberg chains in a wide range of the single-ion anisotropy and temperatures. The high-resolution quantum transfer-matrix simulation data are obtained for the zero-field susceptibility, specific heat as well as for the field-dependent magnetization. The microscopic parameters of a number of real quasi-one-dimensional compounds are found from fitting procedures, some theoretical approaches are numerically verified and an extension of the technique to a non-uniform bond alternating molecular magnets is also put forward.

Keywords

EN

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.Jm: Quantized spin models, including quantum spin frustration

• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 5
• Pages: 959-962

Dates

published

2000-05

Contributors

author

R. Matysiak

• Computational Physics Division, Institute of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

A. Caramico D'Auria

• Dipartimento di Scienze Fisiche, Università di Napoli, Piazzale Tecchio, 80125 Napoli, and INFM Unità di Napoli, Italy

author

F. Esposito

• Dipartimento di Scienze Fisiche, Università di Napoli, Piazzale Tecchio, 80125 Napoli, and INFM Unità di Napoli, Italy

author

U. Esposito

• Dipartimento di Scienze Fisiche, Università di Napoli, Piazzale Tecchio, 80125 Napoli, and INFM Unità di Napoli, Italy

Identifiers

DOI

10.12693/APhysPolA.97.959