Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2007-08-02
Phys. Rev. B 76, 224411 (2007)
Physics
Condensed Matter
Strongly Correlated Electrons
6 pages, 3 figures, to appear in PRB
Scientific paper
10.1103/PhysRevB.76.224411
We investigate phase transitions of the quasi-one-dimensional XXZ model in a magnetic field, using the bosonization combined with the mean field treatment of the inter-chain interaction. We then find that the field induced incommensurate order is certainly realized in the low field region, while the transverse staggered order appears in the high field region. On the basis of the result, we discuss the field-induced phase transition recently observed for BaCo2V2O8.
Okunishi Kouichi
Suzuki Takahumi
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