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Quantum Statistics of Interacting Dimer Spin Systems
- Source :
- Physical Review Letters. 95
- Publication Year :
- 2005
- Publisher :
- American Physical Society (APS), 2005.
-
Abstract
- The compound TlCuCl3 represents a model system of dimerized quantum spins with strong interdimer interactions. We investigate the triplet dispersion as a function of temperature by inelastic neutron scattering experiments on single crystals. By comparison with a number of theoretical approaches we demonstrate that the description of Troyer, Tsunetsugu, and Wuertz [Phys. Rev. B 50, 13515 (1994)] provides an appropriate quantum statistical model for dimer spin systems at finite temperatures, where many-body correlations become particularly important.<br />4 pages, 4 figures, to appear in Physical Review Letters
- Subjects :
- Strongly Correlated Electrons (cond-mat.str-el)
Condensed matter physics
Many-body theory
FOS: Physical sciences
General Physics and Astronomy
Inelastic scattering
Inelastic neutron scattering
Quantum dimer models
Condensed Matter - Strongly Correlated Electrons
Condensed Matter::Strongly Correlated Electrons
Triplet state
Quantum statistical mechanics
Quantum
Spin-½
Subjects
Details
- ISSN :
- 10797114 and 00319007
- Volume :
- 95
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi.dedup.....cf401ae1d26933473f938bd0db6d9887