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arXiv · 1706.08008

Magnetization process of the S = 1/2 two-leg organic spin-ladder compound BIP-BNO

Kazuya Nomura·Yasuhiro H. Matsuda·Yasuo Narumi·Koichi Kindo·Shojiro Takeyama·Yuko Hosokoshi·Toshio Ono·Naoya Hasegawa·Hidemaro Suwa·Synge Todo
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Abstract

We have measured the magnetization of the organic compound BIP-BNO (3,5'-bis(N-tert-butylaminoxyl)-3',5-dibromobiphenyl) up to 76 T where the magnetization is saturated. The S = 1/2 antiferromagnetic Heisenberg two-leg spin-ladder model accounts for the obtained experimental data regarding the magnetization curve, which is clarified using the quantum Monte Carlo method. The exchange constants on the rung and the side rail of the ladder are estimated to be J(rung)/kB = 65.7 K and J(leg)/kB = 14.1 K, respectively, deeply in the strong coupling region: J(rung)/J(leg) > 1.

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Kazuya Nomura, Yasuhiro H. Matsuda, Yasuo Narumi, Koichi Kindo, Shojiro Takeyama, Yuko Hosokoshi, Toshio Ono, Naoya Hasegawa, Hidemaro Suwa, Synge Todo. 2017-06-24. Magnetization process of the S = 1/2 two-leg organic spin-ladder compound BIP-BNO. https://doi.org/10.7566/jpsj.86.104713

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