Spin-density wave ground state in the one-dimensional conductor (TMTSF) 2PF6: microscopic evidence from 77Se and 1H NMR experiments

A. Andrieux D. Jérome K. Bechgaard
Abstract : 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.
Keywords : 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
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Submitted on : Thursday, January 1, 1981 - 8:00:00 AM
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A. Andrieux, D. Jérome, K. Bechgaard. Spin-density wave ground state in the one-dimensional conductor (TMTSF) 2PF6: microscopic evidence from 77Se and 1H NMR experiments. Journal de Physique Lettres, 1981, 42 (4), pp.87-90. ⟨10.1051/jphyslet:0198100420408700⟩. ⟨jpa-00231880⟩

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