Competition of superconductivity and ferromagnetism in CexC 60 compounds

Y. Maruyama; S. Motohashi; N. Sakai; M. Tanaka; H. Ogata; Y. Kubozono

doi:10.1016/S0379-6779(02)00825-1

Competition of superconductivity and ferromagnetism in Ce_xC ₆₀ compounds

Y. Maruyama, S. Motohashi, N. Sakai, M. Tanaka, H. Ogata, Y. Kubozono

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

3 Citations (Scopus)

Abstract

High temperature-treated compounds of mixed powders of cerium metal and C₆₀ solid show fairly strong diamagnetic signal in the zero-field-cooling process and distinct ferromagnetic behavior in the field-cooling path below 13.5K and 15K, respectively. In the resistivity measurement of a compacted and long-term heated pellet of the powder a distinct drop of the resistivity with decreasing temperature is recognized around 20K, which is followed by a steep rise of the resistivity below 14K. These findings indicate an existing competition of superconductivity and ferromagnetism in this compound.

Original language	English
Pages (from-to)	737-738
Number of pages	2
Journal	Synthetic Metals
Volume	135-136
DOIs	https://doi.org/10.1016/S0379-6779(02)00825-1
Publication status	Published - Apr 4 2003
Externally published	Yes

Keywords

Fullerenes and derivatives
Magnetic phase transition
Superconducting phase transition

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0379-6779(02)00825-1

Cite this

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title = "Competition of superconductivity and ferromagnetism in CexC 60 compounds",

abstract = "High temperature-treated compounds of mixed powders of cerium metal and C60 solid show fairly strong diamagnetic signal in the zero-field-cooling process and distinct ferromagnetic behavior in the field-cooling path below 13.5K and 15K, respectively. In the resistivity measurement of a compacted and long-term heated pellet of the powder a distinct drop of the resistivity with decreasing temperature is recognized around 20K, which is followed by a steep rise of the resistivity below 14K. These findings indicate an existing competition of superconductivity and ferromagnetism in this compound.",

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author = "Y. Maruyama and S. Motohashi and N. Sakai and M. Tanaka and H. Ogata and Y. Kubozono",

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T1 - Competition of superconductivity and ferromagnetism in CexC 60 compounds

AU - Maruyama, Y.

AU - Motohashi, S.

AU - Sakai, N.

AU - Tanaka, M.

AU - Ogata, H.

AU - Kubozono, Y.

PY - 2003/4/4

Y1 - 2003/4/4

N2 - High temperature-treated compounds of mixed powders of cerium metal and C60 solid show fairly strong diamagnetic signal in the zero-field-cooling process and distinct ferromagnetic behavior in the field-cooling path below 13.5K and 15K, respectively. In the resistivity measurement of a compacted and long-term heated pellet of the powder a distinct drop of the resistivity with decreasing temperature is recognized around 20K, which is followed by a steep rise of the resistivity below 14K. These findings indicate an existing competition of superconductivity and ferromagnetism in this compound.

AB - High temperature-treated compounds of mixed powders of cerium metal and C60 solid show fairly strong diamagnetic signal in the zero-field-cooling process and distinct ferromagnetic behavior in the field-cooling path below 13.5K and 15K, respectively. In the resistivity measurement of a compacted and long-term heated pellet of the powder a distinct drop of the resistivity with decreasing temperature is recognized around 20K, which is followed by a steep rise of the resistivity below 14K. These findings indicate an existing competition of superconductivity and ferromagnetism in this compound.

KW - Fullerenes and derivatives

KW - Magnetic phase transition

KW - Superconducting phase transition

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