Polaronic ferromagnetism in conducting polymers

被引：10
|
作者：
Pereira, EC
Correa, AA
Bulhoes, LOS
Aleixo, PC
Nóbrega, JA
de Oliveira, AJA
Ortiz, WA
Walmsley, L
机构：
[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
[2] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
[3] Univ Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Fis, BR-13500970 Rio Claro, SP, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷 / PART II期
基金：
巴西圣保罗研究基金会;
关键词：
polarons; polymers; ferromagnetism; exchange interactions;
D O I：
10.1016/S0304-8853(01)00095-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ferromagnetic behavior at room temperature is reported in metal-free-conducting polymer samples of poly(3-methylthiophene) doped with ClO4-. Magnetic moments associated with spin 1/2 positive polarons are possibly interacting through a Dzialoshinski-Moriya anisotropic superexchange via the dopant anions, giving rise to weak ferromagnetism. (C) 2001 Elsevier Science BY. All rights reserved.
引用
收藏
页码：2023 / 2025
页数：3
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