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A holographic approach to point defect structure determination in inorganic crystals: Er-doped Sc2O3

DOI: 10.1107/S0108767303000473 DOI Help
PMID: 12604852 PMID Help

Authors: Karin Anduleit (Hasylab) , Gerhard Materlik (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Acta Crystallographica Section A Foundations Of Crystallography , VOL 59 , PAGES 138-142

State: Published (Approved)
Published: January 2003

Abstract: A holographic approach to the analysis of a Bragg scattering pattern has been described by Szoke [Acta Cryst. (1993), A49, 853-866]. The combination of crystallographic procedures and holographic interpretation allows reconstruction of an unknown part of the crystalline structure model-free if the other part of the structure is known. By introducing the concept of an average crystal, this approach is extended to point defect structures in inorganic crystals. In this case, the host lattice is well known while the defect structure is regarded as the unknown part. To demonstrate the feasibility of this approach, an Sc2O3 sample doped with Er at low concentration has been studied. An additional electron density has been observed, which can be interpreted as an interstitial Er position.

Journal Keywords: Point Defect Structures; Holography

Subject Areas: Technique Development, Chemistry

Facility: D3 at HASYLAB

Added On: 10/11/2010 08:51

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Technique Development - Chemistry Chemistry

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