Pressure-induced reentrant transition in NbS3 phases: Combined Raman scattering and x-ray diffraction study

Abdel-Hafiez, MahmoudUppsala universitet,Molekyl- och kondenserade materiens fysik,Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China;Harvard Univ, Lyman Lab Phys, Cambridge, MA 02138 USA;Natl Univ Sci & Technol MISiS, Moscow 119049, Russia (author)

Pressure-induced reentrant transition in NbS3 phases : Combined Raman scattering and x-ray diffraction study

We report the evolution of charge density wave states under pressure for two NbS3 phases: triclinic (phase I) and monoclinic (phase II) at room temperature. Raman and x-ray diffraction (XRD) techniques are applied. The x-ray studies on the monoclinic phase under pressure show a compression of the lattice at different rates below and above similar to 7 GPa but without a change in space group symmetry. The Raman spectra of the two phases evolve similarly with pressure; all peaks almost disappear in the similar to 6-8 GPa range, indicating a transition from an insulating to a metallic state, and peaks at new positions appear above 8 GPa. The results suggest suppression of the ambient charge-density waves and their subsequent recovery with new orderings above 8 GPa.

Thiyagarajan, R.Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China (author)
Majumdar, ArnabUppsala universitet,Materialteori(Swepub:uu)arnma977 (author)
Ahuja, Rajeev,1965-Uppsala universitet,Materialteori(Swepub:uu)rajeeva (author)
Luo, WeiUppsala universitet,Materialteori(Swepub:uu)weluo226 (author)
Vasiliev, A. N.Natl Univ Sci & Technol MISiS, Moscow 119049, Russia;Natl Res South Ural State Univ, Chelyabinsk 454080, Russia;Moscow MV Lomonosov State Univ, Moscow 119991, Russia (author)
Maarouf, A. A.Imam Abdulrahman Bin Faisal Univ, Inst Res & Med Consultat, Dept Phys, Dammam 31441, Saudi Arabia (author)
Zybtsev, S. G.RAS, Inst Radioengn & Elect, Moscow 125009, Russia (author)
Pokrovskii, V. YaRAS, Inst Radioengn & Elect, Moscow 125009, Russia (author)
V-Zaitsev-Zotov, S.RAS, Inst Radioengn & Elect, Moscow 125009, Russia (author)
Pavlovskiy, V. V.RAS, Inst Radioengn & Elect, Moscow 125009, Russia (author)
Pai, Woei WuNatl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan;Natl Taiwan Univ, Dept Phys, Taipei 10610, Taiwan (author)
Yang, W.Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China (author)
Kulik, L. , V (author)
Uppsala universitetMolekyl- och kondenserade materiens fysik (creator_code:org_t)

By the author/editor: Abdel-Hafiez, Ma ...; Thiyagarajan, R.; Majumdar, Arnab; Ahuja, Rajeev, 1 ...; Luo, Wei; Vasiliev, A. N.; show more...; Maarouf, A. A.; Zybtsev, S. G.; Pokrovskii, V. Y ...; V-Zaitsev-Zotov, ...; Pavlovskiy, V. V ...; Pai, Woei Wu; Yang, W.; Kulik, L. , V; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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