Polaronic ferromagnetism in conducting polymers

Pereira, E. C.; Correa, A. A.; Bulhões, L. O S; Aleixo, P. C.; Nóbrega, J. A.; De Oliveira, A. J A; Ortiz, W. A.; Walmsley, L.

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/66629

Title:

Polaronic ferromagnetism in conducting polymers

Author(s):

Institution:

Universidade Federal de São Carlos (UFSCar)
Universidade Estadual Paulista (UNESP)

ISSN:

0304-8853

Abstract:

Ferromagnetic behavior at room temperature is reported in metal-free-conducting polymer samples of poly(3-methylthiophene) doped with ClO 4 -. 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. © 2001 Elsevier Science B.V. All rights reserved.

Issue Date:

1-Dec-2001

Citation:

Journal of Magnetism and Magnetic Materials, v. 226-230, n. PART II, p. 2023-2025, 2001.

Time Duration:

2023-2025

Keywords:

Exchange interactions
Ferromagnetism
Polarons
Polymers
Ferromagnetic behaviors
Poly (3-methylthiophene)
Room temperature
Spin 1/2
Superexchanges
Weak ferromagnetism
Conducting polymers
Doping (additives)
Magnetic moments
Organic conductors

Source:

http://dx.doi.org/10.1016/S0304-8853(01)00095-6

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/66629

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