Ferromagnetic interaction in poly(m-aniline): Electron spin resonance and magnetic susceptibility

Kazunari Yoshizawa, Kazuyoshi Tanaka, Tokio Yamabe, Jun Yamauchi

研究成果: Contribution to journalArticle査読

89 被引用数 (Scopus)

抄録

Ferromagnetic interaction among the spins in poly(m-aniline) has been suggested by electron spin resonance and magnetic susceptibility measured at low temperatures. From the g-value analysis, these spins are found to be located on nitrogens although they are in some degree delocalized on phenyl rings. Doping of this polymer with iodine leads to an increase in the spin concentration up to 1020 spins·(g-polymer)-1. Saturation magnetization of 0.30 emu·G·g-1 and spin clusters of S = 1 are observed in the iodine-doped polymer from the temperature and field dependence of the magnetization. Through-bond interaction, depending on the topology of a polymer skeleton, is considered to operate between rather distant spins through the spin polarization with antiferromagnetic array of the phenyl rings.

本文言語英語
ページ(範囲)5516-5522
ページ数7
ジャーナルThe Journal of Chemical Physics
96
7
DOI
出版ステータス出版済み - 1 1 1992
外部発表はい

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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