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arXiv · 2102.07473

Multiple magnetization plateaus induced by farther neighbor interaction in an $S = 1$ two-leg Heisenberg spin ladder

Hidehiko Kohshiro·Ryui Kaneko·Satoshi Morita·Hosho Katsura·Naoki Kawashima
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Abstract

We study the magnetization process of the $S=1$ Heisenberg model on a two-leg ladder with farther neighbor spin-exchange interaction. We consider the interaction that couples up to the next-nearest neighbor rungs and find an exactly solvable regime where the ground states become product states. The next-nearest neighbor interaction tends to stabilize magnetization plateaus at multiples of 1/6. In most of the exactly solvable regime, a single magnetization curve shows two series of plateaus with different periodicities.

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Hidehiko Kohshiro, Ryui Kaneko, Satoshi Morita, Hosho Katsura, Naoki Kawashima. 2021-02-15. Multiple magnetization plateaus induced by farther neighbor interaction in an $S = 1$ two-leg Heisenberg spin ladder. https://doi.org/10.1103/physrevb.104.214409

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