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

X. H. Chen; D. H. Chi; Z. Sun; T. Takenobu; Z. S. Liu; Y. Iwasa

doi:10.1021/ja993881m

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

X. H. Chen, D. H. Chi, Z. Sun, T. Takenobu, Z. S. Liu, Y. Iwasa

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

A series of new stable fullerides A₃C₇₀ (A = Sm, 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 C₆₀ fullerides could be an important factor in the absence of superconductivity in C₇₀ fullerides. The electronic transport can be explained by a variable-range hopping mechanism for A₃C₇₀ (A = Ba, Sm) samples, while the transport for Sm(x)C₇₀ (x > 3) samples appears to be dominated by weak localization (WL) theory.

Original language	English
Pages (from-to)	5729-5732
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	122
Issue number	24
DOIs	https://doi.org/10.1021/ja993881m
Publication status	Published - 2000 Jun 21
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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abstract = "A series of new stable fullerides A3C70 (A = Sm, 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 C60 fullerides could be an important factor in the absence of superconductivity in C70 fullerides. The electronic transport can be explained by a variable-range hopping mechanism for A3C70 (A = Ba, Sm) samples, while the transport for Sm(x)C70 (x > 3) samples appears to be dominated by weak localization (WL) theory.",

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T1 - Synthesis, structure, and transport properties of novel fullerides A3C70 (A = Ba and Sm)

AU - Chen, X. H.

AU - Chi, D. H.

AU - Sun, Z.

AU - Takenobu, T.

AU - Liu, Z. S.

AU - Iwasa, Y.

PY - 2000/6/21

Y1 - 2000/6/21

N2 - A series of new stable fullerides A3C70 (A = Sm, 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 C60 fullerides could be an important factor in the absence of superconductivity in C70 fullerides. The electronic transport can be explained by a variable-range hopping mechanism for A3C70 (A = Ba, Sm) samples, while the transport for Sm(x)C70 (x > 3) samples appears to be dominated by weak localization (WL) theory.

AB - A series of new stable fullerides A3C70 (A = Sm, 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 C60 fullerides could be an important factor in the absence of superconductivity in C70 fullerides. The electronic transport can be explained by a variable-range hopping mechanism for A3C70 (A = Ba, Sm) samples, while the transport for Sm(x)C70 (x > 3) samples appears to be dominated by weak localization (WL) theory.

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

Abstract

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