Journal
PHYSICA B-CONDENSED MATTER
Volume 404, Issue 3-4, Pages 537-540Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2008.11.035
Keywords
Spin-Peierls transition; Low dimensional magnetism; Inelastic neutron scattering
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We present the first inelastic neutron scattering investigation of magnetic excitations in a one-dimensional (1D) organic conductor. This experiment is conducted in the spin-Peierls (SP) ground state of (TMTTF)(2)PF6. The study, performed with a 98% deuterated powder, reveals the double gap structure of magnetic excitations of the SP chain. These responses, as well as the observation of a higher energy mode, occur at energies consistent with microscopic coupling deduced from magnetic measurements performed on the same sample. (C) 2008 Published by Elsevier B.V.
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