Физика Низких Температур: Том 31, Выпуск 8-9 (Август 2005), c. 885-906    ( к оглавлению , назад )

Quantum Heisenberg antiferromagnets: a survey of the activity in Firenze

Umberto Balucani1, Luca Capriotti2,3, Alessandro Cuccoli4,5, Andrea Fubini4,5, Tommaso Roscilde6, Valerio Tognetti4,5, Ruggero Vaia1,5, and Paola Verrucchi5,1

1Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, I-50019 Sesto Fiorentino (FI), Italy

2Valuation Risk Group, Credit Suisse First Boston (Europe) Ltd., One Cabot Square, London, E14 4QJ, United Kingdom

3Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106, USA

4Dipartimento di Fisica dell'Universita di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino (FI), Italy

5Istituto Nazionale per la Fisica della Materia, Unita di Ricerca di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino (FI), Italy

6Department of Physics and Astronomy, University of Southern California, Los Angeles, CA 90089-0484, USA

Received January 20, 2005

Аннотация

Over the years the research group in Firenze has produced a number of theoretical results concerning the statistical mechanics of quantum antiferromagnetic models, which range from the theory of two-magnon Raman scattering to the characterization of the phase transitions in quantum low-dimensional antiferromagnetic models. Our research activity was steadily aimed to the understanding of experimental observations.

PACS:
75.10.Jm - Quantized spin models
75.40.-s - Critical-point effects, specific heats, short-range order (see also 65.40.-b Heat capacities of solids)
75.40.Gb - Dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.)
75.40.Mg - Numerical simulation studies
75.10.-b - General theory and models of magnetic ordering (see also 05.50.+q Lattice theory and statistics)