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Magnetization Plateaux in Bethe Ansatz Solvable Spin-S Ladders

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Date

2003

Authors

Maslen, Mark
Batchelor, Murray
de Gier, J

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

We examine the properties of the Bethe ansatz solvable two- and three-leg spin-S ladders. These models include Heisenberg rung interactions of arbitrary strength and thus capture the physics of the spin-S Heisenberg ladders for strong rung coupling. The discrete values derived for the magnetization plateaux are seen to fit with the general prediction based on the Lieb-Schultz-Mattis theorem. We examine the magnetic phase diagram of the spin-1 ladder in detail and find an extended magnetization plateau at the fractional value 〈M〉 = 1/2 in agreement with the experimental observation for the organic polyradical spin-1 ladder compound BIP-TENO.

Description

Keywords

Keywords: article; calculation; elementary particle; magnetism; mathematical analysis; optics; physics

Citation

URI

http://hdl.handle.net/1885/87886

Collections

ANU Research Publications

Source

Physical Review B

Type

Journal article

Book Title

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