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VOLUME 62 (1995) | ISSUE 5 | PAGE 442
Nonlinear conductivity anomalies of the quasi-one-dimensional compound m-TaS3 near the Peierls transition temperature
A new nonlinear conduction regime was discovered in the Peierls conductor /n-TaS3. This regime occurs in a narrow ( = 5 K) temperature interval near the Peierls transition temperature ôò2 = 157.5 ë and it is characterized by the appearance of a) two substantially different threshold voltages in the dependence of the differential conductance σά on the dc voltage VDC and b) periodic steps in the function σα{ VDC) in the presence of a strong rf field. Here the magnitude of a step (40 Ëð)~1 is comparable to the conductance quantum. © 1995 American Institute of Physics.