学術雑誌論文

本学関連学会

text

電気材料技術雑誌. 1992, 1, p. 27-34

日本語

text

1992-05-01

Organic magneto-active material containing nitrogen and oxygen was found in the products prepared by pyrolysis of guanine (G) or the mixture of 2, 4, 6-triphenoxy-1, 3, 5-triazine (TPTA) and o, m, p-phenylenediamine (PDA), benzoguanamine (BG) or melamine (M). The content of magneto-active components was largest in the samples pyrolyzed at a relatively low temperature 600～700℃. Magnetization-magnetic field curves in those components exhibited hysteresis at room temperature, confirming an inclusion of ferromagnetic components. The largest value of saturation magnetization (2.3 e mu•G/g) has been obtained in the sample of pyrolyzed G. Fraction of ferromagnetic spin in those components, however, is relatively low compared to that of paramagnetic or ferrimagnetic spin. The origin of ferromagnetism in those molecular structures is tentatively interpreted in terms of parrallel spin orientation of nitrogen or oxygen radicals.

81543

窒素・酸素を含む有機化合物の熱処理による強磁性発現

電気材料技術懇談会

日本語

1992-05-01

電気材料技術雑誌

1

27

34

https://hdl.handle.net/11094/81543