Electronic structure of Pr  x   La 1‐ x  AlO 3  solid solution | Zendy

Szubka M. | Zendy; Talik E. | Zendy; Molak A. | Zendy; Turczyński S. | Zendy; Pawlak D. A. | Zendy

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Electronic structure of Pr x La 1‐ x AlO 3 solid solution

Author(s) -

Szubka M.,

Talik E.,

Molak A.,

Turczyński S.,

Pawlak D. A.

Publication year - 2010

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.201000371

Subject(s) - praseodymium , x ray photoelectron spectroscopy , valence (chemistry) , analytical chemistry (journal) , solid solution , electrical resistivity and conductivity , chemistry , oxygen , materials science , inorganic chemistry , nuclear magnetic resonance , physics , organic chemistry , chromatography , quantum mechanics

The crystals of Pr x La 1− x AlO 3 solid solution grown by the Czochralski method were examined by X‐ray photoelectron spectroscopy. The electric conductivity was measured at high temperature range. The composition of the Pr x La 1− x AlO 3+ x crystals obtained with XPS analysis exhibited an increased content of oxygen in comparison to the nominal value. The praseodymium valence may influence the coloration of the Pr x La 1− x AlO 3 crystals. In the dark brown colour Pr 0.40 La 0.60 AlO 3 sample with the highest amount of oxygen the 3d4f 1 satellite lines have the highest intensity and were attributed to presence of Pr 4+ ions. The semiconducting properties of the Pr x La 1− x AlO 3 single crystals correspond to the electronic structure determined with the XPS measurements and to the deduced occurrence of defects. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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