Magnetic-field induced ferromagnetism in bissilylated C 60 by pyrolysis

Yasukazu Kajihara; Katsumi Tanigaki; Takeshi Akasaka

doi:10.1063/1.1420145

Magnetic-field induced ferromagnetism in bissilylated C 60 by pyrolysis

Yasukazu Kajihara, Katsumi Tanigaki, Takeshi Akasaka

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Unique magnetic-field-induced ferromagnetism is observed in a solid of bissilylated C₆₀ after heat treatment. The Curie temperature observed is higher than room temperature. The saturation moment is 9×10-3μB and 0.045μB per C60 molecule at 300 K and 1.9 K, respectively. Silyl substituents are confirmed to be cleaved during a heat process by means of 1H-NMR and 13C-NMR, and the electron spins left on C₆₀ sites are responsible for the observed ferromagnetic properties.

Original language	English
Title of host publication	Nanonetwork Materials
Subtitle of host publication	Fullerenes, Nanotubes, and Related Systems
Editors	Tsuneya Ando, Yoshihiro Iwasawa, Koichi Kikuchi, Yahachi Saito, Susumu Saito, Mototada Kobayashi
Publisher	American Institute of Physics Inc.
Pages	433-436
Number of pages	4
ISBN (Electronic)	0735400326, 9780735400320
DOIs	https://doi.org/10.1063/1.1420145
Publication status	Published - 2001 Oct 16
Externally published	Yes
Event	International Symposium on Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems 2001 - Kamakura, Japan Duration: 2001 Jan 15 → 2001 Jan 18

Publication series

Name	AIP Conference Proceedings
Volume	590
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	International Symposium on Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems 2001
Country	Japan
City	Kamakura
Period	01/1/15 → 01/1/18

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.1420145

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Cite this

Kajihara, Y., Tanigaki, K., & Akasaka, T. (2001). Magnetic-field induced ferromagnetism in bissilylated C 60 by pyrolysis. In T. Ando, Y. Iwasawa, K. Kikuchi, Y. Saito, S. Saito, & M. Kobayashi (Eds.), Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems (pp. 433-436). (AIP Conference Proceedings; Vol. 590). American Institute of Physics Inc.. https://doi.org/10.1063/1.1420145

Magnetic-field induced ferromagnetism in bissilylated C 60 by pyrolysis. / Kajihara, Yasukazu; Tanigaki, Katsumi; Akasaka, Takeshi.

Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems. ed. / Tsuneya Ando; Yoshihiro Iwasawa; Koichi Kikuchi; Yahachi Saito; Susumu Saito; Mototada Kobayashi. American Institute of Physics Inc., 2001. p. 433-436 (AIP Conference Proceedings; Vol. 590).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kajihara, Y, Tanigaki, K & Akasaka, T 2001, Magnetic-field induced ferromagnetism in bissilylated C 60 by pyrolysis. in T Ando, Y Iwasawa, K Kikuchi, Y Saito, S Saito & M Kobayashi (eds), Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems. AIP Conference Proceedings, vol. 590, American Institute of Physics Inc., pp. 433-436, International Symposium on Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems 2001, Kamakura, Japan, 01/1/15. https://doi.org/10.1063/1.1420145

Kajihara, Yasukazu ; Tanigaki, Katsumi ; Akasaka, Takeshi. / Magnetic-field induced ferromagnetism in bissilylated C 60 by pyrolysis. Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems. editor / Tsuneya Ando ; Yoshihiro Iwasawa ; Koichi Kikuchi ; Yahachi Saito ; Susumu Saito ; Mototada Kobayashi. American Institute of Physics Inc., 2001. pp. 433-436 (AIP Conference Proceedings).

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abstract = "Unique magnetic-field-induced ferromagnetism is observed in a solid of bissilylated C60 after heat treatment. The Curie temperature observed is higher than room temperature. The saturation moment is 9×10-3μB and 0.045μB per C60 molecule at 300 K and 1.9 K, respectively. Silyl substituents are confirmed to be cleaved during a heat process by means of 1H-NMR and 13C-NMR, and the electron spins left on C60 sites are responsible for the observed ferromagnetic properties.",

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AB - Unique magnetic-field-induced ferromagnetism is observed in a solid of bissilylated C60 after heat treatment. The Curie temperature observed is higher than room temperature. The saturation moment is 9×10-3μB and 0.045μB per C60 molecule at 300 K and 1.9 K, respectively. Silyl substituents are confirmed to be cleaved during a heat process by means of 1H-NMR and 13C-NMR, and the electron spins left on C60 sites are responsible for the observed ferromagnetic properties.

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