Fermionic description of spin-gap states of antiferromagnetic Heisenberg ladders in a magnetic field

Details Fermionic description of spin-gap states of antiferromagnetic Heisenberg ladders in a magnetic field Fermionic description of spin-gap states of antiferromagnetic Heisenberg ladders in a magnetic field

2002-06-27

arxiv.org/abs/cond-mat/0206554v1

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, 3 figures embedded, J. Phys. Soc. Jpn. Vol. 71, No. 6, 1607 (2002)

Scientific paper

10.1143/JPSJ.71.1607

Employing the Jordan-Wigner transformation on a unique path and then making a
mean-field treatment of the fermionic Hamiltonian, we semiquantitatively
describe the spin-gap states of Heisenberg ladders in a field. The appearance
of magnetization plateaux is clarified as a function of the number of legs.

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