Spin-Flop Switching and Memory in a Molecular Conductor

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• 作者：Mitsuhiko Maesato ; Tomohito Kawashima ; Yoshitomo Furushima ; Gunzi Saito ; Hiroshi Kitagawa ; Takashi Shirahata ; Megumi Kibune ; Tatsuro Imakubo
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：October 24, 2012
• 年：2012
• 卷：134
• 期：42
• 页码：17452-17455
• 全文大小：267K
• 年卷期：v.134,no.42(October 24, 2012)
• ISSN：1520-5126

文摘

We report the first observation of spin-flop-induced sharp positive magnetoresistance as large as 100% and nonvolatile magnetoresistive memory in a 蟺鈥揹 hybrid molecular conductor, (DIETSe)₂FeCl₄ [DIETSe = diiode(ethylenedithio)tetraselenafulvalene]. The unprecedented magnetotransport phenomena originate from the coexistence of the spin density wave (SDW) of the quasi-one-dimensional (Q1D) 蟺 electrons and the antiferromagnetic order of d-electron spins, indicating the interplay between the electronic instability of Q1D 蟺 electrons and local moments of antiferromagnetic d-electron spins. These findings offer new possibilities in molecular electronics/spintronics.