Magnetization process from Chern-Simons theory and its application to SrCu2(BO3)2

Details Magnetization process from Chern-Simons theory and its application to SrCu2(BO3)2 Magnetization process from Chern-Simons theory and its application to SrCu2(BO3)2

2002-04-07

arxiv.org/abs/cond-mat/0204161v1

Prog.Theor.Phys.Suppl.145:76,2002

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 7 figures, Proceedings of the 16th Nishinomiya-Yukawa Memorial Symposium, Nishinomiya, Japan, Nov. 2001

Scientific paper

10.1143/PTPS.145.76

In two-dimensional systems, it is possible transmute bosons into fermions by use of a Chern-Simons gauge field. Such a mapping is used to compute magnetization processes of two-dimensional magnets. The calculation of the magnetization curve then involves the structure of the Hofstadter problem for the lattice under consideration. Certain features of the Hofstadter butterfly are shown to imply the appearance of magnetization plateaus. While not always successfull, this approach leads to interesting results when applied to the 2D AF magnet SrCu2(BO3)2.

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