Synthesis, structure, and transport properties of novel fullerides A3C70 (A = Ba and Sm)

被引：15

作者：

Chen, XH ^{[1
]}

Chi, DH

Sun, Z

Takenobu, T

Liu, ZS

Iwasa, Y

机构：

[1] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2000年 / 122卷 / 24期

关键词：

D O I：

10.1021/ja993881m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of new stable fullerides A(3)C(70) (A = Smr Ba) has been synthesized using solid-state reactions. The structure of Sm3C70 has been identified to be monoclinic by simulation of synchrotron powder diffraction data. The structure of Ba3C70 is derived from the A15 structure adopted by Ba3C60. The low symmetry relative to C-60 fullerides could be an important factor in the absence of superconductivity in C-70 fullerides. The electronic transport can be explained by a variable-range hopping mechanism for A3C70 (A = Ba, Sm) samples, while the transport for SmxC70 (x > 3) samples appears to be dominated by weak localization (WL) theory.

引用

页码：5729 / 5732

页数：4

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