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Phys. Rev. B 81, 020409(R) (2010) [4 pages]

Field-induced spin supersolidity in frustrated S=1/2 spin-dimer models

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Pochung Chen1,*, Chen-Yen Lai1,2, and Min-Fong Yang3
1Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
2Department of Physics and Astronomy, University of California, Riverside, California 92521, USA
3Department of Physics, Tunghai University, Taichung 40704, Taiwan

Received 6 November 2009; revised 26 November 2009; published 25 January 2010

By means of the recently developed algorithm based on the tensor product states, the magnetization process of frustrated spin-1/2 spin-dimer models on a square lattice is investigated. Clear evidence of a supersolid phase over a finite regime of magnetic field is observed. Besides, critical fields at various field-induced transitions are determined accurately. Our work hence sheds light on the search of the supersolid phase in real frustrated spin-dimer compounds.

© 2010 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.81.020409
DOI:
10.1103/PhysRevB.81.020409
PACS:
05.10.Cc, 75.10.Jm, 64.70.Tg

*pcchen@phys.nthu.edu.tw