Phys. Rev. Lett. 99, 027202 (2007) [4 pages]Quantum and Thermal Transitions Out of the Supersolid Phase of a 2D Quantum AntiferromagnetReceived 12 February 2007; published 9 July 2007 We investigate the thermodynamic properties of a field-induced supersolid phase in a 2D quantum antiferromagnet model. Using quantum Monte Carlo simulations, a very rich phase diagram is mapped out in the temperature—magnetic-field plane, with an extended supersolid region where a diagonal (solid) order coexists with a finite XY spin stiffness (superfluid). The various quantum and thermal transitions out of the supersolid state are characterized. Experimental consequences in the context of field-induced magnetization plateau materials are briefly discussed. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.027202
DOI:
10.1103/PhysRevLett.99.027202
PACS:
75.10.Jm, 05.30.Jp, 05.70.Fh, 67.90.+z
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.