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Magnetization Curves of Antiferromagnetic Heisenberg Spin-1/2 Ladders

D. C. Cabra·A. Honecker·P. Pujol
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Abstract

Magnetization processes of spin-1/2 Heisenberg ladders are studied using strong-coupling expansions, numerical diagonalization of finite systems and a bosonization approach. We find that the magnetization exhibits plateaux as a function of the applied field at certain rational fractions of the saturation value. Our main focus are ladders with 3 legs where plateaux with magnetization one third of the saturation value are shown to exist.

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D. C. Cabra, A. Honecker, P. Pujol. 1997-11-06. Magnetization Curves of Antiferromagnetic Heisenberg Spin-1/2 Ladders. https://doi.org/10.1103/physrevlett.79.5126

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