Temperature induced de-polymerization in TDAE-C60

Takashi Kambe, S. Garaj, L. Forró, M. Fujiwara, K. Oshima

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The phase change due to the polymerization of the ferromagnetic tetrakis-dimethylamino-ethylene (TDAE)-C60 has been reconfirmed by applying pressures in situ up to Pc = 7 kbar in an ESR cavity. This transition is irreversible and the phase above Pc is stable even after releasing pressure. The pressure-dependent g-factor indicates the revival of the TDAE+ spins. Moreover, the ferromagnetism disappears simultaneously at Pc. The de-polymerization of the polymerized (pressure-released) crystal has been confirmed for the first time by the high-temperature ESR study. This transition is also irreversible and the polymer phase is stable up to 470 K. The de-polymerized phase is considered to be the original ferromagnetic one.

Original languageEnglish
Pages (from-to)697-698
Number of pages2
JournalSynthetic Metals
Volume133-134
DOIs
Publication statusPublished - Mar 13 2003

Fingerprint

depolymerization
Depolymerization
Ethylene
ethylene
Paramagnetic resonance
Temperature
temperature
Ferromagnetism
releasing
ferromagnetism
Polymers
polymerization
Polymerization
Crystals
cavities
tetrakis(dimethylamino)ethylene
polymers
crystals

Keywords

  • De-polymerization
  • Ferromagnetic
  • High-pressure ESR
  • Polymer
  • TDAE-C

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Kambe, T., Garaj, S., Forró, L., Fujiwara, M., & Oshima, K. (2003). Temperature induced de-polymerization in TDAE-C60. Synthetic Metals, 133-134, 697-698. https://doi.org/10.1016/S0379-6779(02)00432-0

Temperature induced de-polymerization in TDAE-C60. / Kambe, Takashi; Garaj, S.; Forró, L.; Fujiwara, M.; Oshima, K.

In: Synthetic Metals, Vol. 133-134, 13.03.2003, p. 697-698.

Research output: Contribution to journalArticle

Kambe, T, Garaj, S, Forró, L, Fujiwara, M & Oshima, K 2003, 'Temperature induced de-polymerization in TDAE-C60', Synthetic Metals, vol. 133-134, pp. 697-698. https://doi.org/10.1016/S0379-6779(02)00432-0
Kambe, Takashi ; Garaj, S. ; Forró, L. ; Fujiwara, M. ; Oshima, K. / Temperature induced de-polymerization in TDAE-C60. In: Synthetic Metals. 2003 ; Vol. 133-134. pp. 697-698.
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