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arXiv · 1606.09542

NbS$_{3}$: A unique quasi one-dimensional conductor with three charge density wave transitions

S. G. Zybtsev·V. Ya. Pokrovskii·V. F. Nasretdinova·S. V. Zaitsev-Zotov·V. V. Pavlovskiy·A. B. Odobesco·Woei Wu Pai·M. -W. Chu·Y. G. Lin·E. Zupanič·H. J. P. van Midden·S. Šturm·E. Tchernychova·A. Prodan·J. C. Bennett·I. R. Mukhamedshin·O. V. Chernysheva·A. P. Menushenkov·V. B. Loginov·B. A. Loginov·A. N. Titov·Mahmoud Abdel-Hafiez
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Abstract

Through transport, compositional and structural studies, we review the features of the charge-density wave (CDW) conductor of NbS$_{3}$ (phase II). We highlight three central results: 1) In addition to the previously reported CDW transitions at $T_{P1}$ = 360\,K and $T_{P2}$ = 150\,K, another CDW transition occurs at a much higher temperature $T_{P0}$ = 620-650\,K; evidence for the non-linear conductivity of this CDW is presented. 2) We show that CDW associated with the $T_{P2}$ - transition arises from S vacancies acting as donors. Such a CDW transition has not been observed before. 3) We show exceptional coherence of the $T_{P1}$-CDW at room-temperature. Additionally, we report on the effects of uniaxial strain on the CDW transition temperatures and transport.

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S. G. Zybtsev, V. Ya. Pokrovskii, V. F. Nasretdinova, S. V. Zaitsev-Zotov, V. V. Pavlovskiy, A. B. Odobesco, Woei Wu Pai, M. -W. Chu, Y. G. Lin, E. Zupanič, H. J. P. van Midden, S. Šturm, E. Tchernychova, A. Prodan, J. C. Bennett, I. R. Mukhamedshin, O. V. Chernysheva, A. P. Menushenkov, V. B. Loginov, B. A. Loginov, A. N. Titov, Mahmoud Abdel-Hafiez. 2016-06-30. NbS$_{3}$: A unique quasi one-dimensional conductor with three charge density wave transitions. https://doi.org/10.1103/physrevb.95.035110

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