Journal of Radio Electronics. eISSN 1684-1719. 2023. №12
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DOI: https://doi.org/10.30898/1684-1719.2023.12.17

 

COLLECTIVE NATURE OF LOW-TEMPERATURE PHOTOCONDUCTIon
AND CONDUCTIon IN THE PEIERLS CONDUCTOR ORTHORHOMBIC TaS3

 

V.E. Minakova, S.V. Zaitzev-Zotov

 

Kotelnikov IRE RAS

125009, Russia, Moscow, Mokhovaya str., 11, b.7

 

The paper was received November 29, 2023.

 

Abstract. This work summarizes the results of series of works devoted to the study of the mechanisms of low-temperature conduction and photoconduction in the Peierls conductor orthorhombic TaS3 (o-TaS3). We used the tools we discovered to change the relationship between the single-particle and collective components of low-temperature photoconduction and conduction in o-TaS3 – illumination and uniaxial stretching of the sample. Using them, we were able to separate single-particle and collective contributions and show that the collective contribution dominates both low-temperature conduction (T ≲ 100 K) and low-temperature photoconduction (T ≲ 45 K). In addition, the discovered analogy between the influence of illumination and stretching on low-temperature conduction and photoconduction made it possible to establish the dimension of charge density wave (CDW) pinning in samples of different cross-sections at low temperatures. It was found that for all samples, including bulk ones, one-dimensional pinning is observed at temperatures T < 40 K, and it also has a collective character.

Key words: charge-density-wave, non-linear conduction, collective conduction, solitons, photoconduction.

Financing: The research was carried out within the framework of the state assignment of the Kotelnikov IRE RAS No. 122042000064-1.

Corresponding author: Minakova Valeria Evgen’evna, mina_cplire@mail.ru

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For citation:

Minakova V.E., Zaitsev-Zotov S.V. Collective nature of low-temperature photoconduction and conduction in Peierls conductor orthorhombic TaS3. // Journal of Radio Electronics. – 2023. – №. 12. https://doi.org/10.30898/1684-1719.2023.12.17