Anomalous high pressure effect in superconducting fullerides

T. Takenobu; H. Shimoda; Y. Iwasa; T. Mitani; C. Murayama; N. Môri; K. Ishii; H. Suematsu

doi:10.1016/S0379-6779(98)00728-0

Anomalous high pressure effect in superconducting fullerides

T. Takenobu^*, H. Shimoda, Y. Iwasa, T. Mitani, C. Murayama, N. Môri, K. Ishii, H. Suematsu

^*Corresponding author for this work

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

Abstract

Here we report pressure dependence of Tc and lattice parameter of two types of fullerene superconductors with expanded unit cells. In trivalent complex fullerides (NH₃)_xNaAA'C₆₀ (A,A'=K,Rb and Cs), chemical and physical pressure effects on Tc are considerably different. Similar deviations are observed in ternary superconductors A₃Ba₃C₆₀. These finding contrast in a striking way with the empirical rule, implying that, in the large interfullerene distance regime, Tc is not controlled simply by lattice parameters.

Original language	English
Pages (from-to)	2445-2446
Number of pages	2
Journal	Synthetic Metals
Volume	103
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(98)00728-0
Publication status	Published - 1999 Jun 24
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Materials Chemistry
Polymers and Plastics

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10.1016/S0379-6779(98)00728-0

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title = "Anomalous high pressure effect in superconducting fullerides",

abstract = "Here we report pressure dependence of Tc and lattice parameter of two types of fullerene superconductors with expanded unit cells. In trivalent complex fullerides (NH3)xNaAA'C60 (A,A'=K,Rb and Cs), chemical and physical pressure effects on Tc are considerably different. Similar deviations are observed in ternary superconductors A3Ba3C60. These finding contrast in a striking way with the empirical rule, implying that, in the large interfullerene distance regime, Tc is not controlled simply by lattice parameters.",

author = "T. Takenobu and H. Shimoda and Y. Iwasa and T. Mitani and C. Murayama and N. M{\^o}ri and K. Ishii and H. Suematsu",

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T1 - Anomalous high pressure effect in superconducting fullerides

AU - Takenobu, T.

AU - Shimoda, H.

AU - Iwasa, Y.

AU - Mitani, T.

AU - Murayama, C.

AU - Môri, N.

AU - Ishii, K.

AU - Suematsu, H.

PY - 1999/6/24

Y1 - 1999/6/24

N2 - Here we report pressure dependence of Tc and lattice parameter of two types of fullerene superconductors with expanded unit cells. In trivalent complex fullerides (NH3)xNaAA'C60 (A,A'=K,Rb and Cs), chemical and physical pressure effects on Tc are considerably different. Similar deviations are observed in ternary superconductors A3Ba3C60. These finding contrast in a striking way with the empirical rule, implying that, in the large interfullerene distance regime, Tc is not controlled simply by lattice parameters.

AB - Here we report pressure dependence of Tc and lattice parameter of two types of fullerene superconductors with expanded unit cells. In trivalent complex fullerides (NH3)xNaAA'C60 (A,A'=K,Rb and Cs), chemical and physical pressure effects on Tc are considerably different. Similar deviations are observed in ternary superconductors A3Ba3C60. These finding contrast in a striking way with the empirical rule, implying that, in the large interfullerene distance regime, Tc is not controlled simply by lattice parameters.

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EP - 2446

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Anomalous high pressure effect in superconducting fullerides

Abstract

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