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

Article

关键词: ANTI-FERROMAGNETIC CHAIN;    GROUND-STATE PROPERTIES;    COMPETING INTERACTIONS;    HEISENBERG CHAIN;    ANTIFERROMAGNETS;    SYSTEMS;   

DOI  :  10.1103/PhysRevB.57.11504

来源: SCIE

【 摘 要 】

We investigate ground-state energies and magnetization curves in the one-dimensional XXZ model with next-to-nearest neighbor coupling alpha>0 and anisotropy Delta (-1 less than or equal to Delta less than or equal to 1) at T=0. In between the familiar ferro-and antiferromagnetic phase we find a transition region-called the metamagnetic phase-where the magnetization curve is discontinuous at a critical field B-c(alpha,Delta).

【 授权许可】

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