Ruegg, C;
Normand, B;
Matsumoto, M;
Niedermayer, C;
Furrer, A;
Kramer, KW;
Gudel, HU;
... Mutka, H; + view all
(2005)
Quantum statistics of interacting dimer spin systems.
PHYS REV LETT
, 95
(26)
, Article 267201. 10.1103/PhysRevLett.95.267201.
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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 Wurtz [Phys. Rev. B 50, 13 515 (1994)] provides an appropriate quantum statistical model for dimer spin systems at finite temperatures, where many-body correlations become particularly important.
| Type: | Article |
|---|---|
| Title: | Quantum statistics of interacting dimer spin systems |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.267201 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.267201 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | BOSE-EINSTEIN CONDENSATION, TLCUCL3, GAP |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/9978 |
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