Czochralski growth of SrLaAlO4 and SrLaGaO 4 single crystals and its implications for the crystal morphology

• Autorzy: Pajaczkowska A. , Gloubokov A. , Klos A. , Woensdregt C. F.
• Języki publikacji: EN

Abstrakty

EN

Single crystals of SrLaAlO4 (SLA) and SrLaGaO4 (SLG) have been grown from nonstoichiometric melts by the Czochralski method making use of different seed orientations, [100] (SLA, SLG), [110] (SLA) and [001] (SLG). The anisotropic properties of the crystal structure are reflected in the growth morphology of the crystals. In the case of (SLA) {101} facets appear at the crystal/melt interface and in that of [100] SLG {101} and {103} facets occur, while for [001] SLG {001} and {103} facets are present. SLA crystals are very similar to the theoretical growth forms computed according to the Hartman-Perdok theory for models with an effective charge on oxygen, qO −2|e|. However the habit of SLG crystals corresponds better to the theoretical growth forms based on an effective charge qO = −1.5|e| due to the presence of oxygen vacancies.

Słowa kluczowe

EN

single crystal; crystal morphology

PL

monokryształ; morfologia kryształu

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Zeszyty Historyczne Politechniki Warszawskiej
• Rocznik: 2014
• Tom: z. 16
• Strony: 85--89
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Pajaczkowska A.

• Institute of Electronic Materials Technology, Warsaw, Poland

autor

Gloubokov A.

• Institute of Electronic Materials Technology, Warsaw, Poland

autor

Klos A.

• Institute of Electronic Materials Technology, Warsaw, Poland

autor

Woensdregt C. F.

• Faculty of Earth Sciences, Geodvnamical Research Institute, The Netherlands

Bibliografia

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• 19.A. Gloubokov PhD Thesis IEMT, Warsaw (1996)

Uwagi

PL

Artykuł przedrukowany z czasopisma "Journal of Crystal Growth", 1997, Vol.171(3), pp.387-391