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Quantum phase transitions in a spin-1/2 alternating Heisenberg antiferromagnetic chain under a staggered transverse magnetic field
- Source :
-
Physics Letters A . Apr2009, Vol. 373 Issue 18/19, p1687-1690. 4p. - Publication Year :
- 2009
-
Abstract
- 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 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. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03759601
- Volume :
- 373
- Issue :
- 18/19
- Database :
- Academic Search Index
- Journal :
- Physics Letters A
- Publication Type :
- Academic Journal
- Accession number :
- 37347118
- Full Text :
- https://doi.org/10.1016/j.physleta.2008.12.073