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arXiv · 1402.2743

Fine-Tuning of Magnetic Interactions in Organic Spin Ladders

Hironori Yamaguchi·Hirotsugu Miyagai·Tokuro Shimokawa·Kenji Iwase·Toshio Ono·Yohei Kono·Naoki Kase·Koji Araki·Shunichiro Kittaka·Toshiro Sakakibara·Takashi Kawakami·Kouichi Okunishi·Yuko Hosokoshi
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Abstract

We have succeeded in synthesizing two types of new organic radical crystals 3-I-V [= 3- (3-iodophenyl)-1,5-diphenylverdazyl] and 3-Br-4-F-V [= 3-(3-bromo-4-fluorophenyl)-1,5- diphenylverdazyl]. Their crystal strucutures are found to be isomorphous to that of previously reported spin ladder 3-Cl-4-F-V. Through the quantitative analysis of their molecular arrangements and magnetic properties, we confirm that these materials form ferromagnetic chain-based spin ladders with slightly modulated magnetic interactions. These results present the first quantitative demonstration of the fine-tuning of magnetic interactions in the molecular- based materials.

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Hironori Yamaguchi, Hirotsugu Miyagai, Tokuro Shimokawa, Kenji Iwase, Toshio Ono, Yohei Kono, Naoki Kase, Koji Araki, Shunichiro Kittaka, Toshiro Sakakibara, Takashi Kawakami, Kouichi Okunishi, Yuko Hosokoshi. 2014-02-12. Fine-Tuning of Magnetic Interactions in Organic Spin Ladders. https://doi.org/10.7566/jpsj.83.033707

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