Pereira, E. C.Correa, A. A.Bulhões, L. O SAleixo, P. C.Nóbrega, J. A.De Oliveira, A. J AOrtiz, W. A. [UNESP]Walmsley, L. [UNESP]2014-05-272014-05-272001-12-01Journal of Magnetism and Magnetic Materials, v. 226-230, n. PART II, p. 2023-2025, 2001.0304-8853http://hdl.handle.net/11449/66629Ferromagnetic 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.2023-2025engExchange interactionsFerromagnetismPolaronsPolymersFerromagnetic behaviorsPoly (3-methylthiophene)Room temperatureSpin 1/2SuperexchangesWeak ferromagnetismConducting polymersDoping (additives)Magnetic momentsOrganic conductorsArtigo10.1016/S0304-8853(01)00095-6WOS:000170628400343Acesso restrito2-s2.0-33748701859