Phase diagram of an anisotropic frustrated ferromagnetic spin-1/2 chain in a magnetic field: A density matrix renormalization group study

Heidrich-Meisner, F., McCulloch, I. P. and Kolezhuk, A. K. (2009) Phase diagram of an anisotropic frustrated ferromagnetic spin-1/2 chain in a magnetic field: A density matrix renormalization group study. Physical Review B, 80 14: 144417-1-144417-9. doi:10.1103/PhysRevB.80.144417

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Author Heidrich-Meisner, F.
McCulloch, I. P.
Kolezhuk, A. K.
Title Phase diagram of an anisotropic frustrated ferromagnetic spin-1/2 chain in a magnetic field: A density matrix renormalization group study
Journal name Physical Review B   Check publisher's open access policy
ISSN 1098-0121
1550-235X
Publication date 2009-10-20
Year available 2009
Sub-type Article (original research)
DOI 10.1103/PhysRevB.80.144417
Open Access Status File (Publisher version)
Volume 80
Issue 14
Start page 144417-1
End page 144417-9
Total pages 9
Editor P.D. Adams
Place of publication United States
Publisher American Physical Society
Collection year 2010
Language eng
Subject C1
020603 Quantum Information, Computation and Communication
970102 Expanding Knowledge in the Physical Sciences
Abstract We study the phase diagram of a frustrated spin-1/2 ferromagnetic chain with anisotropic exchange interactions in an external magnetic field using the density matrix renormalization group method. We show that an easy-axis anisotropy enhances the tendency toward multimagnon bound states while an easy-plane anisotropy favors chirally ordered phases. In particular, a moderate easy-plane anisotropy gives rise to a quantum phase transition at intermediate magnetization. We argue that this transition is related to the finite-field phase transition experimentally observed in the spin-1/2 compound LiCuVO4.
Keyword Quantum
Cusp
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
2010 Higher Education Research Data Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 44 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 15 Nov 2009, 00:01:00 EST