A giant reconstruction of α-quartz (0001) interpreted as three domains of nano dauphine twins

S. D. Eder; K. Fladischer; S. R. Yeandel; A. Lelarge; S. C. Parker; E. Søndergård; B. Holst

doi:10.1038/srep14545

A giant reconstruction of α-quartz (0001) interpreted as three domains of nano dauphine twins

S. D. Eder, K. Fladischer, S. R. Yeandel, A. Lelarge, S. C. Parker, E. Søndergård, B. Holst

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Abstract

Silica (SiO₂) is one of the most common materials on Earth. The crystalline form α-quartz is the stable silica polymorph at ambient conditions although metastable forms exist. α-quartz is a piezoelectric material, it can be produced artificially and is widely used for example in electronics and the biosciences. Despite the many application areas, the atomic surface structures of silica polymorphs are neither well understood nor well characterized. Here we present measurements of α-quartz (0001). Helium Atom Scattering combined with Atomic Force Microscopy reveals a giant reconstruction consisting of 5.55 ± 0.07 nm wide ribbons, oriented 10.4° ± 0.8° relative to the bulk unit cell. The ribbons, with the aid of atomistic modelling, can be explained as a self-organised pattern of nano Dauphine twins (nano electrical twins).

Original language	English
Article number	14545
Journal	Scientific Reports
Volume	5
DOIs	https://doi.org/10.1038/srep14545
Publication status	Published - 8 Oct 2015

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abstract = "Silica (SiO2) is one of the most common materials on Earth. The crystalline form α-quartz is the stable silica polymorph at ambient conditions although metastable forms exist. α-quartz is a piezoelectric material, it can be produced artificially and is widely used for example in electronics and the biosciences. Despite the many application areas, the atomic surface structures of silica polymorphs are neither well understood nor well characterized. Here we present measurements of α-quartz (0001). Helium Atom Scattering combined with Atomic Force Microscopy reveals a giant reconstruction consisting of 5.55 ± 0.07 nm wide ribbons, oriented 10.4° ± 0.8° relative to the bulk unit cell. The ribbons, with the aid of atomistic modelling, can be explained as a self-organised pattern of nano Dauphine twins (nano electrical twins).",

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T1 - A giant reconstruction of α-quartz (0001) interpreted as three domains of nano dauphine twins

AU - Eder, S. D.

AU - Fladischer, K.

AU - Yeandel, S. R.

AU - Lelarge, A.

AU - Parker, S. C.

AU - Søndergård, E.

AU - Holst, B.

PY - 2015/10/8

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AB - Silica (SiO2) is one of the most common materials on Earth. The crystalline form α-quartz is the stable silica polymorph at ambient conditions although metastable forms exist. α-quartz is a piezoelectric material, it can be produced artificially and is widely used for example in electronics and the biosciences. Despite the many application areas, the atomic surface structures of silica polymorphs are neither well understood nor well characterized. Here we present measurements of α-quartz (0001). Helium Atom Scattering combined with Atomic Force Microscopy reveals a giant reconstruction consisting of 5.55 ± 0.07 nm wide ribbons, oriented 10.4° ± 0.8° relative to the bulk unit cell. The ribbons, with the aid of atomistic modelling, can be explained as a self-organised pattern of nano Dauphine twins (nano electrical twins).

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A giant reconstruction of α-quartz (0001) interpreted as three domains of nano dauphine twins

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