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Becca F, Mila F. Peierls-like transition induced by frustration in a two-dimensional antiferromagnet. Phys Rev Lett. 2002;89(3):037204doi: 10.1103/PhysRevLett.89.037204.
Becca, F., & Mila, F. (2002). Peierls-like transition induced by frustration in a two-dimensional antiferromagnet. Physical review letters, 89(3), 037204. https://doi.org/10.1103/PhysRevLett.89.037204
Becca, Federico, and Mila, Frédéric. "Peierls-like transition induced by frustration in a two-dimensional antiferromagnet." Physical review letters vol. 89,3 (2002): 037204. doi: https://doi.org/10.1103/PhysRevLett.89.037204
Becca F, Mila F. Peierls-like transition induced by frustration in a two-dimensional antiferromagnet. Phys Rev Lett. 2002 Jul 15;89(3):037204. doi: 10.1103/PhysRevLett.89.037204. Epub 2002 Jul 01. PMID: 12144417.
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Phys Rev Lett. 2002 Jul 15;89(3):037204. doi: 10.1103/PhysRevLett.89.037204. Epub 2002 Jul 01.

Peierls-like transition induced by frustration in a two-dimensional antiferromagnet.

Physical review letters

Federico Becca, Frédéric Mila

Affiliations

  1. Institut de Physique Théorique, Université de Lausanne, CH-1015 Lausanne, Switzerland.

PMID: 12144417 DOI: 10.1103/PhysRevLett.89.037204

Abstract

We show that the introduction of frustration into the spin- 1/2 two-dimensional (2D) antiferromagnetic Heisenberg model on a square lattice via a next-nearest-neighbor exchange interaction can lead to a Peierls-like transition, from a tetragonal to an orthorhombic phase, when the spins are coupled to adiabatic phonons. The two different orthorhombic ground states define an Ising order parameter, which is expected to lead to a finite temperature transition. Implications for Li(2)VOSiO(4), the first realization of that model, will be discussed.

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