Presentation 1995/9/25
Magnetic Properties of Metal Phthalocyanine Doped with Alkali Metal
S. Nakajima, Y. Iijima, A. Watada, K. Ujiie, L.S. Grigoryan,
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Abstract(in English) At present, one of the interesting attentions of chemistry and physics is a development of organic ferromagnetic materials. Grigoryan et al. have reported phthalocyanine (Pc) doped with alkali metals exhibits ferromagnetism. The purpose of our study is to enhance the magnetization for the sample in order to establish it as the level of practical magnetic materials. We have found that FePc doped with potassium exhibits ferromagnetism. The magnetization increases with reaction temperature and time, then decreases with further reaction temperature and time, where the FePc molecule is partly decomposed. The magnetization observed as optimum was 15.3 emuG/g (a quarter of that of Ni) at 298K. The g-value of this sample in ESR measurements differs from that of free iron. It was observed the structure of the greater part of the sample was amorphous in XRD pattern. These results seem to indicate that the origin for the magnetism could not be supposed by free iron, but other magnetic interaction.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Phthalocyanine / Alkali metal / Doping / Organic ferromagnetic material / Ferromagnetism / ESR
Paper # OME95-39
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Conference Information
Committee OME
Conference Date 1995/9/25(1days)
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Paper Information
Registration To Organic Material Electronics (OME)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Magnetic Properties of Metal Phthalocyanine Doped with Alkali Metal
Sub Title (in English)
Keyword(1) Phthalocyanine
Keyword(2) Alkali metal
Keyword(3) Doping
Keyword(4) Organic ferromagnetic material
Keyword(5) Ferromagnetism
Keyword(6) ESR
1st Author's Name S. Nakajima
1st Author's Affiliation R & D Center, Ricoh Co., LTD.()
2nd Author's Name Y. Iijima
2nd Author's Affiliation R & D Center, Ricoh Co., LTD.
3rd Author's Name A. Watada
3rd Author's Affiliation R & D Center, Ricoh Co., LTD.
4th Author's Name K. Ujiie
4th Author's Affiliation R & D Center, Ricoh Co., LTD.
5th Author's Name L.S. Grigoryan
5th Author's Affiliation Dpartment of Physics and Asronomy, University of Kentucky Lexington
Date 1995/9/25
Paper # OME95-39
Volume (vol) vol.95
Number (no) 262
Page pp.pp.-
#Pages 5
Date of Issue