Orientational and magnetic transitions in ammoniated alkali metal fullerides

被引：0

作者：

Takenobu, T ^{[1
]}

Miyake, M ^{[1
]}

Muro, T ^{[1
]}

Iwasa, Y ^{[1
]}

Mitani, T ^{[1
]}

机构：

[1] Japan Adv Inst Sci & Technol, Tatsunokuchi, Ishikawa 9231292, Japan

来源：

NANONETWORK MATERIALS: FULLERENES, NANOTUBES AND RELATED SYSTEMS | 2001年 / 590卷

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Monoammoniated alkali fulleride salts (NH3)K3-xRbxC60 (0 less than or equal to x less than or equal to 3), forming an isostructual orthorhombic series, show a Mott-Hubbard type antiferromagnetic transition. The Neel temperature T-N was found to first increase with the inter-fullerene spacing and then decrease for (NH3)Rb3C60, forming a maximum at 76K. Moreover, a structural phase transition, which is associated with the ordering of metal-NH3 pair, was found at 150K in all samples and a correlation between the magnetic and structural transition is expected. The identical structural transition temperature T-S is a striking contrast with T-N.

引用

页码：373 / 376

页数：4

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