Frequency dependence of elastic anomalies in charge-density-wave conductors.
Frequency dependence of elastic anomalies in charge-density-wave conductors.
复制标题
电荷密度波导体中弹性异常的频率依赖性。
DOI：
10.1103/physrevlett.63.1853
复制
发表时间：
1989
影响因子：
8.6
通讯作者：
Brill
中科院分区：
文献类型：
--
作者：
Xiang;Brill
我们测量了电荷密度波导体NbSe_3和TaS_3的杨氏模数(Y)和内耗反常随频率的变化。使用螺旋谐振器探测器在1到100 kHz之间对弯曲共振的泛音进行了测量。与温度有关的异常与频率无关，而与电场有关的异常随频率迅速减小，如AY/Yocco~，其中p~j。这些结果与所有关于电荷密度波态弹性性质的模型是不一致的。
We have measured the frequency dependence of the Young's-modulus (Y) and internal-friction anomalies in the charge-density-wave conductors NbSe3 and TaS3. Measurements were made on overtones of flexural resonances using a helical resonator detector between 1 and 100 kHz. Temperaturedependent anomalies were independent of frequency, whereas electric-field-dependent anomalies decreased rapidly with frequency; e.g., AY/Yocco~, where p~~ j . These results are inconsistent with all models proposed of the elastic properties of the charge-density-wave state.