MAGNETIC-SUSCEPTIBILITY AND MAGNETIZATION MEASUREMENTS OF POLYACENIC SEMICONDUCTIVE MATERIALS

被引：5
作者：
TANAKA, K
KOBASHI, M
SANEKATA, H
YAMABE, T
YAMAUCHI, J
YATA, S
机构：
[1] KYOTO UNIV,FAC ENGN,DIV MOLEC ENGN,SAKYO KU,KYOTO 606,JAPAN
[2] KYOTO UNIV,COLL LETTERS ARTS & SCI,SAKYO KU,KYOTO 606,JAPAN
[3] KANEBO LTD,DEV LABS,MIYAKOJIMA KU,OSAKA 534,JAPAN
来源：
PHYSICAL REVIEW B | 1991年 / 43卷 / 10期
关键词：
D O I：
10.1103/PhysRevB.43.8277
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic-susceptibility and magnetization measurements of several kinds of polyacenic semiconductive (PAS) materials prepared from the heat treatment (470-750-degrees-C) of phenol-formaldehyde resin were carried out using the Faraday-balance method. Magnetic parameters were determined from the analysis of the magnetic susceptibility measured in the temperature range 2-260 K. The temperature dependence of the magnetic susceptibility of each sample obeys a weak Curie-Weiss-type law. Analyses of the magnetization curves observed in the magnetic-field range 0-5 T have shown that the total spin quantum number S of the pristine PAS samples is in the range 1/2 < S < 1 and that of the I2-doped sample is S = 1/2. Connection between the magnetic properties obtained here and electrical conductivity will be discussed in detail.
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收藏
页码：8277 / 8281
页数：5
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