Transient electrical response of K0.30MoO3

R. M. Fleming, L. F. Schneemeyer

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The "blue bronze," K0.30MoO3, has been shown to have a charge-density wave (CDW) and a nonlinear dc response similar to that of NbSe3. We find K0.30MoO3 also shows a transient response which is qualitatively identical with that of NbSe3. If a current pulse drives the voltage through the threshold electric field for CDW depinning, an extremely slow voltage response is observed. The characteristic time of the slow response is proportional to the duration of the current pulse and for long pulses the voltage V(t)-V() is proportional to lnt. In this sense the transient electrical response of K0.30MoO3 is very similar to the magnetic response of a spin-glass. These results suggest that the CDW state of materials with moving CDW's may be described by large, weakly coupled domains.

Original languageEnglish
Pages (from-to)6996-6999
Number of pages4
JournalPhysical Review B
Issue number12
StatePublished - 1983


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