Magnetization Curves of Antiferromagnetic Heisenberg Spin-1/2 Ladders

Details Magnetization Curves of Antiferromagnetic Heisenberg Spin-1/2 Ladders Magnetization Curves of Antiferromagnetic Heisenberg Spin-1/2 Ladders

1997-07-09

arxiv.org/abs/cond-mat/9707090v2

Phys.Rev.Lett. 79 (1997) 5126-5129

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages REVTeX, 4 PostScript figures included using psfig.sty; this is the final version to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.79.5126

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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