Effect of Uniaxial Tension of Whiskers of TaS3 Quasi-One-Dimensional Conductor on Excitation and Detection of Resonance Mechanical Oscillations.

Autor:	Nikitin, M. V., Pokrovskii, V. Ya., Zybtsev, S. G.
Předmět:	MECHANICAL oscillations ELECTRICAL conductors ORTHORHOMBIC crystal system HETERODYNING (Electronics) DENSITY wave theory
Zdroj:	Journal of Communications Technology & Electronics; Oct2018, Vol. 63 Issue 10, p1217-1221, 5p
Abstrakt:	Abstract: Quasi-one-dimensional conductors with charge-density wave (CDW), which are used to excite and detect mechanical oscillations, are considered. The effect of elongation ε 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 ε allow one to distinguish bending and torsional modes. The magnitude of the detected signal increases sharply at εc ≈ 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 (ε > εc), the signal virtually vanishes. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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