${}^{77}$Se NMR investigation of the field-induced spin-density-wave transitions in (TMTSF)${}_2$ClO${}_4$

Abstract

Complementary ${}^{77}$Se nuclear magnetic resonance (NMR) and electrical transport have been used to correlate the spin density dynamics with the subphases of the field-induced spin density wave (FISDW) ground state in \tmt. We find that the peaks in the spin-lattice relaxation rate 1/T${}_1$ appear within the metal-FISDW phase boundary and/or at first-order subphase transitions. In the quantum limit above 25 T, the NMR data gives an insight into the FISDW electronic structure.

5 pages, 4 figures