engleski

Interplay between phase defects and spin polarization in the specifc heat of the spin density wave compound (TMTTF)2Br in a magnetic field

Equilibrium heat relaxation experiments provide evidence that the ground state of the commensurate spin density wave (SDW) compound (TMTTF)2Br after the application of a suficient magnetic field is different from the conventional ground state. The experiments are interpreted on the basis of the local model of strong pinning as the deconfinement of soliton-antisoliton pairs triggered by the Zeeman coupling to spin degrees of freedom, resulting in a magnetic field induced density wave glass for the spin carrying phase configuration.

magneto-specific heat; Zeeman splitting; strong pinning; soliton

Str. 227203-1 - 227203-4