Spin-density wave ground state in the one-dimensional conductor (TMTSF) 2PF6: microscopic evidence from 77Se and 1H NMR experiments
Résumé
The vanishing of the 77Se nuclear resonance signal and the broadening by internal magnetic fields of the proton resonance line establish the existence of spin-density waves in the low temperature semiconducting state of (TMTSF) 2PF6. The thermally activated collective mode of the commensurate spin-density wave contributes significantly to the proton spin-lattice relaxation. It is also suggested that the very small amplitude of the spin-density wave is due to the coexistence of two diverging channels in the conducting state : the SDW and Superconductivity channels.
Mots clés
nuclear magnetic resonance
nuclear spin lattice relaxation
one dimensional conductivity
organic compounds
proton magnetic resonance
spin density waves
one dimensional conductor
TMTSF sub 2 PF sub 6
sup 77 Se
sup 1 H
NMR
internal magnetic fields
low temperature
semiconducting state
thermally activated collective mode
proton spin lattice relaxation
spin density wave ground state
superconductivity channel
Domaines
Articles anciens
Origine : Accord explicite pour ce dépôt
Loading...