Pereira, E. C.Bulhoes, LOSPawlicka, A.Nascimento, O. R.Faria, R. M.Walmsley, L.2014-05-202014-05-201994-08-01Physical Review B. College Pk: American Physical Soc, v. 50, n. 6, p. 3648-3651, 1994.0163-1829http://hdl.handle.net/11449/37745Electron-spin-resonance and dc conductivity data show a thermal-history-dependent transition at 240 K in pressed pellets of ClO4--doped poly(3-methylthiophene) (P3MT). We discuss the possibility of this transition to be a Peierls transition from a room-temperature-metallic to a charge-density-wave state driven by anions ordering at this temperature. Below 100 K, dc conductivity shows a change from linear to exponential decay. Nonlinear conductivity has also been observed in this system for very low electric fields.3648-3651engArtigo10.1103/PhysRevB.50.3648WOS:A1994PB62900017Acesso abertoWOSA1994PB62900017.pdf