Disordered phase of a two-dimensional Heisenberg model with S = 1

S. Moukouri

doi:10.1016/j.physleta.2005.11.064

Disordered phase of a two-dimensional Heisenberg model with S = 1

S. Moukouri

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

We use the two-step density-matrix renormalization group method to study an anisotropic version of the J1-J2 model with S=1. We find a second order transition from a Néel Q=(π,π) phase to a disordered phase with a spin gap. This result which is contrasted to our previous finding on S=12 systems suggests the importance of topological effects in the disordered phases of Heisenberg models.

Original language	English
Pages (from-to)	256-259
Number of pages	4
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	352
Issue number	3
DOIs	https://doi.org/10.1016/j.physleta.2005.11.064
State	Published - 27 Mar 2006
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/j.physleta.2005.11.064

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title = "Disordered phase of a two-dimensional Heisenberg model with S = 1",

abstract = "We use the two-step density-matrix renormalization group method to study an anisotropic version of the J1-J2 model with S=1. We find a second order transition from a N{\'e}el Q=(π,π) phase to a disordered phase with a spin gap. This result which is contrasted to our previous finding on S=12 systems suggests the importance of topological effects in the disordered phases of Heisenberg models.",

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year = "2006",

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AU - Moukouri, S.

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Y1 - 2006/3/27

N2 - We use the two-step density-matrix renormalization group method to study an anisotropic version of the J1-J2 model with S=1. We find a second order transition from a Néel Q=(π,π) phase to a disordered phase with a spin gap. This result which is contrasted to our previous finding on S=12 systems suggests the importance of topological effects in the disordered phases of Heisenberg models.

AB - We use the two-step density-matrix renormalization group method to study an anisotropic version of the J1-J2 model with S=1. We find a second order transition from a Néel Q=(π,π) phase to a disordered phase with a spin gap. This result which is contrasted to our previous finding on S=12 systems suggests the importance of topological effects in the disordered phases of Heisenberg models.

UR - https://www.scopus.com/pages/publications/33644686252

U2 - 10.1016/j.physleta.2005.11.064

DO - 10.1016/j.physleta.2005.11.064

M3 - Article

AN - SCOPUS:33644686252

SN - 0375-9601

VL - 352

SP - 256

EP - 259

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 3

ER -

Disordered phase of a two-dimensional Heisenberg model with S = 1

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