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Pressure-induced reentrant transition in NbS3 phases: Combined Raman scattering and x-ray diffraction study
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Molecular and Condensed Matter Physics. 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.
Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.ORCID iD: 0000-0003-1231-9994
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2019 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 99, no 23, article id 235126Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2019. Vol. 99, no 23, article id 235126
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Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-390211DOI: 10.1103/PhysRevB.99.235126ISI: 000471983200001OAI: oai:DiVA.org:uu-390211DiVA, id: diva2:1341518
Available from: 2019-08-09 Created: 2019-08-09 Last updated: 2019-08-09Bibliographically approved

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Abdel-Hafiez, MahmoudMajumdar, ArnabAhuja, RajeevLuo, Wei

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