Effect of Uniaxial Tension of Whiskers of TaS_3 Quasi-One-Dimensional Conductor on Excitation and Detection of Resonance Mechanical Oscillations

Nikitin M. V.; Pokrovskii V. Ya.; Zybtsev S. G.

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Effect of Uniaxial Tension of Whiskers of TaS_3 Quasi-One-Dimensional Conductor on Excitation and Detection of Resonance Mechanical Oscillations

机译：TaS_3准一维导体晶须的单轴张力对激励和共振机械振荡的影响

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Quasi-one-dimensional conductors with charge-density wave (CDW), which are used to excite and detect mechanical oscillations, are considered. The effect of elongation epsilon of whiskers of a quasi-one-dimensional conductor (orthorhombic TaS3) on the excited resonance oscillation modes is studied by means of heterodyning. Dependences of the oscillation frequency on epsilon allow one to distinguish bending and torsional modes. The magnitude of the detected signal increases sharply at epsilon(c) approximate to 0.6% in the region of CDW transition into the ultracoherent (UC) state. This effect is attributed to an anomalously strong piezoresistive response; in the UC state (epsilon epsilon(c)), the signal virtually vanishes.

机译：考虑使用带电荷密度波（CDW）的准一维导体来激励和检测机械振荡。借助杂化研究了准一维导体晶须的伸长ε（斜方晶系TaS3）对激发共振振荡模态的影响。振荡频率对ε的依赖性使得人们可以区分弯曲模式和扭转模式。在CDW过渡到超相干（UC）状态的区域中，检测到的信号的幅度在epsilon（c）处急剧增加，约为0.6％。这种效应归因于异常强的压阻响应；在UC状态下（ε> epsilon（c）），信号实际上消失了。

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《NTT R&D》 |2018年第10期|1217-1221|共5页
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Nikitin M. V.; Pokrovskii V. Ya.; Zybtsev S. G.;
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Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Moscow 125009, Russia;

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1. Self-Detection of Ultrasonic Standing Waves and Anomaly of Young's Modulus at Uniaxial Extension Whiskers of the Quasi-One-Dimensional Conductor TaS3 [J] . Nikitin M. V, Pokrovskii V. Ya, Zybtsev S. G., JETP Letters . 2019,第1期

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2. Self-Detection of High-Frequency Mechanical Oscillations of Whiskers in Quasi-1D Conductors with Charge-Density Wave [J] . Nikitin M. V., Pokrovskii V. Ya., Zybtsev S. G., Journal of Communications Technology and Electronics . 2018,第3期

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3. Quantization of states and strain-induced transformation of charge-density waves in the quasi-one-dimensional conductor TaS_3 [J] . S. G. Zybtsev, V. Ya. Pokrovskii Physical review. B, Condensed Matter And Materals Physics . 2016,第11期

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Effect of Uniaxial Tension of Whiskers of TaS_3 Quasi-One-Dimensional Conductor on Excitation and Detection of Resonance Mechanical Oscillations

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