Pressure-induced suppression of the Peierls distortion of liquid As and GeX (X=S,Se,Te)

Ayano Chiba; Masatoshi Tomomasa; Takazumi Hayakawa; Stephen M. Bennington; Alex C. Hannon; Kazuhiko Tsuji

doi:10.1103/PhysRevB.80.060201

Pressure-induced suppression of the Peierls distortion of liquid As and GeX (X=S,Se,Te)

Ayano Chiba, Masatoshi Tomomasa, Takazumi Hayakawa, Stephen M. Bennington, Alex C. Hannon, Kazuhiko Tsuji

Department of Physics

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The terminology "Peierls distortion (PD)" has been widely accepted in disordered systems ever since the discovery of PD in liquid As. It has not been clarified, however, to what extent the PD in liquids mirrors the PD in crystals. Here we report the observation on the pressure-induced suppression of PD in liquid As and liquid GeX (X=S,Se,Te), by which we clarified the qualitative differences as well as similarities between the PD of liquid and crystalline systems. By the appearance of prepeak that accompanies PD, we show that the intermediate-range order is related to the "Peierls distortion" in liquids, just as the Peierls distortion doubles the periodicity in one-dimensional lattice model.

Original language	English
Article number	060201
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	80
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.80.060201
Publication status	Published - 2009 Aug 5

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.80.060201

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abstract = "The terminology {"}Peierls distortion (PD){"} has been widely accepted in disordered systems ever since the discovery of PD in liquid As. It has not been clarified, however, to what extent the PD in liquids mirrors the PD in crystals. Here we report the observation on the pressure-induced suppression of PD in liquid As and liquid GeX (X=S,Se,Te), by which we clarified the qualitative differences as well as similarities between the PD of liquid and crystalline systems. By the appearance of prepeak that accompanies PD, we show that the intermediate-range order is related to the {"}Peierls distortion{"} in liquids, just as the Peierls distortion doubles the periodicity in one-dimensional lattice model.",

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AU - Chiba, Ayano

AU - Tomomasa, Masatoshi

AU - Hayakawa, Takazumi

AU - Bennington, Stephen M.

AU - Hannon, Alex C.

AU - Tsuji, Kazuhiko

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AB - The terminology "Peierls distortion (PD)" has been widely accepted in disordered systems ever since the discovery of PD in liquid As. It has not been clarified, however, to what extent the PD in liquids mirrors the PD in crystals. Here we report the observation on the pressure-induced suppression of PD in liquid As and liquid GeX (X=S,Se,Te), by which we clarified the qualitative differences as well as similarities between the PD of liquid and crystalline systems. By the appearance of prepeak that accompanies PD, we show that the intermediate-range order is related to the "Peierls distortion" in liquids, just as the Peierls distortion doubles the periodicity in one-dimensional lattice model.

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Pressure-induced suppression of the Peierls distortion of liquid As and GeX (X=S,Se,Te)

Abstract

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