Bose-Einstein Condensation of Dilute Magnons in TlCuCl3
Abstract
The recent observation [A. Oosawa et al., J. Phys. Condens. Matter 11, 265 (1999)] of the field-induced Néel ordering in the spin-gap magnetic compound TlCuCl3 is interpreted as a Bose-Einstein condensation of magnons. A Hartree-Fock-type calculation based on this picture is shown to describe the temperature dependence of the magnetization well.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 2000
- DOI:
- 10.1103/PhysRevLett.84.5868
- arXiv:
- arXiv:cond-mat/9908118
- Bibcode:
- 2000PhRvL..84.5868N
- Keywords:
-
- Condensed Matter - Statistical Mechanics
- E-Print:
- 4 pages, revtex, 4 eps figures