Metamagnetism in the XXZ model with next-to-nearest-neighbor coupling

Details Metamagnetism in the XXZ model with next-to-nearest-neighbor coupling Metamagnetism in the XXZ model with next-to-nearest-neighbor coupling

1999-02-03

arxiv.org/abs/cond-mat/9902055v1

Phys. Rev. B57 (1998) 11504

Physics

Condensed Matter

LaTeX file (text) + 5 PS files (5 figures)

Scientific paper

10.1103/PhysRevB.57.11504

We investigate groundstate energies and magnetization curves in the one dimensional XXZ-model with next to nearest neighbour coupling $\alpha>0$ and anisotropy $\Delta$ ($-1 \le \Delta \le 1$) at T=0. In between the familiar ferro- and antiferromagnetic phase we find a transition region -- called metamagnetic phase -- where the magnetization curve is discontinuous at a critical field $B_c(\alpha,\Delta)$.

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