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Dynamical transport properties of NbSe_3 with simultaneous sliding of both charge-density waves

机译:NbSe_3的动态输运性质与两个电荷密度波同时滑动

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045105-1%Measurements of the nonlinear conductivity in NbSe_3 when the high-T and the low-T charge-density waves (CDWs) are simultaneously sliding have been performed. It is shown that the threshold electric field E, for depinning the high-T CDW increases 4-5 times at the temperature at which the low-T CDW is formed, indicating the strong pinning effect resulting from the interaction between both CDWs. Under application of a radio-frequency (rf) field, Shapiro steps are never observed simultaneously for both CDWs. At the electric field less one than for high-T CDW sliding only Shapiro steps for low-T CDW were observed, and at higher field only Shapiro steps for high-T CDW exist.
机译:045105-1%测量了高T和低T电荷密度波(CDW)同时滑动时NbSe_3中的非线性电导率。结果表明,用于固定高T CDW的阈值电场E在形成低T CDW的温度下增加了4-5倍,表明这两个CDW之间的相互作用产生了强烈的钉扎效应。在施加射频(rf)场的情况下,两个CDW都不会同时观察到Shapiro步骤。在比高T CDW滑动的电场少的电场下,仅观察到低T CDW的Shapiro阶梯,而在较高电场下,只有高T CDW的Shapiro阶梯存在。

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