AC-DC coupling experiments in the spin density wave state of tetramethyltetraselenofulvalene-hexafluorophosphate [(TMTSF)2PF6] |
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| Authors: | A Jánossy M Hardiman G Grüner |
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| Institution: | Department of Physics University of California at Los Angeles Los Angeles, California 90024 USA |
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| Abstract: | Experiments performed on (TMTSF)2PF6 in the spin density wave (SDW) state in the presence of joint ac and dc excitations do not show evidence for coupling between dc and ac response. Irradiation by microwaves does not lead to strong dc nonlinearity, and attempts to resurrect the ESR signal by applied dc currents were also unsuccessful. While the strongly frequency dependent response is indicative of collective effects, the response of the SDW ground state is fundamentally different from that of a charge density wave condensate. |
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