Anomalous Photoconduction of Low-Temperature Charge-Density Wave in Nb-II as a Physical Basis of a Method for Detection of Weak Signals

The effect of IR radiation on photoconduction of two charge-density waves (CDWs) in the monoclinic phase of quasi-1D conductor Nb[S.sub.3] (Nb[S.sub.3]-II) is studied. For the CDW-1 that emerges at a temperature of [T.sub.P1] = 360 K, threshold field [E.sub.t] increases with irradiation power W. For...

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Bibliographic Details
Published in:Journal of communications technology & electronics 2018-09, Vol.63 (9), p.1053
Main Authors: Zybtsev, S.G, Pokrovskii, V.Ya, Nasretdinova, V.F, Zaitsev-Zotov, S.V
Format: Article
Language:English
Subjects:
Analysis
Methods
Radiation (Physics)
Online Access:Get full text
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Summary:The effect of IR radiation on photoconduction of two charge-density waves (CDWs) in the monoclinic phase of quasi-1D conductor Nb[S.sub.3] (Nb[S.sub.3]-II) is studied. For the CDW-1 that emerges at a temperature of [T.sub.P1] = 360 K, threshold field [E.sub.t] increases with irradiation power W. For CDW-2 that emerges at a temperature of [T.sub.P2] = 150 K, field [E.sub.t] decreases due to IR irradiation, which proves anomalous character of CDW-2 and indicates direct photoactivation of its sliding. Extremely high sensitivity of the measured signal to IR radiation is obtained using stimulation of the CDW coherence by the microwave field.
ISSN:1064-2269
1555-6557
DOI:10.1134/S1064226918090279