Nuclear relaxation studies of the spin-Peierls transition |
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| Authors: | LS Smith E Ehrenfreund AJ Heeger LV Interrante JW Bray HR Hart IS Jacobs |
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| Institution: | Department of Physics and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19174, U.S.A.;General Electric Research and Development Center, Schenectady, NY 12301, U.S.A. |
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| Abstract: | Nuclear relaxation studies of the spin-Peierls transition in TTF-BDT are presented. At low temperature, but above Tc, the results agree in magnitude, frequency dependence and temperature dependence with calculations based on the pseudofermion treatment of the , 1-D Heisenberg antiferromagnet. The sharp decrease in the rate below Tc reflects the continuous opening of a magnetic energy gap at the spin-Peierls transition. |
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