Superconductivity and magnetic field induced spin density waves in the (TMTTF)2X family

L. Balicas , K. Behnia , W. Kang , E. Canadell , P. Auban-Senzier , D. Jérome , M. Ribault , J. Fabre

We report magnetotransport measurements in the quasi one dimensional (Q-1-D) organic conductor (TMTTF)2Br at pressures up to 26 kbar, clown to 0.45 K in magnetic fields up to 19 T along the c* direction. It is found that a superconducting ground state is stabilized under 26 kbar at TC = 0.8 K. No magnetic field induced spin density wave (FISDW) transitions are observed below 19T unlike other Q-1-D superconductors pertaining to the selenium series. The computed amplitude of the interchain coupling along transverse directions is unable to explain the missing; FISDW instability.

Domaines: Articles anciens

L. Balicas, K. Behnia, W. Kang, E. Canadell, P. Auban-Senzier, et al.. Superconductivity and magnetic field induced spin density waves in the (TMTTF)2X family. Journal de Physique I, 1994, 4 (10), pp.1539-1549. ⟨10.1051/jp1:1994205⟩. ⟨jpa-00247011⟩