1H-NMR investigation of the SDW state of (TMTSF)2PF6: Field cycling method

The field cycling technique was used to measure the 1H-NMR spin-lattice relaxation rate, T1−1, in the SDW state of (TMTSF)2PF6. The relaxation curve was a non-single exponential with a residual signal corresponding to an apparent large local field of the order of 0.5 T. 1H-T1−1 at the field of 0.1 T shows a peak anomaly at the 3 K ‘subphase’ transition.