Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1867584 | Physics Letters A | 2009 | 4 Pages |
Abstract
The magnetic behaviors of a spin-1/2 alternating Heisenberg antiferromagnetic chain in a staggered transverse magnetic field is studied by means of the density-matrix renormalization group method and Jordan–Wigner transformation. Quantum phase transitions of different types are observed in the S=1S=1 Néel and XY-like gapless phases, which result from the competitions between the staggered transverse field and magnetic orders induced by anisotropy and alternating interactions. The results are compared with the mean-field and some exactly resolved results.
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Guang-Qiang Zhong, Shou-Shu Gong, Qing-Rong Zheng, Gang Su,