کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1623620 1516411 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of B site cations on the electronic structure of para-electric KTa1/2Nb1/2O3 crystal
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
The effect of B site cations on the electronic structure of para-electric KTa1/2Nb1/2O3 crystal
چکیده انگلیسی

Ultra-soft pseudopotential within the local density approximation was used to investigate the geometry and electronic structures of para-electric solid solution KTa1/2Nb1/2O3 (KTN) crystal. Three arrangements of B site cations (three modes) were presented. The geometry structures, band structures, and density of states were calculated. The difference of the calculated properties were compared among the three modes, and it is found that BO6 octahedron and K–O bond lengths as well as partial density of states of O atoms are significantly different for three modes. Hence, it is proved that the effect of B site cations influences the geometry and electronic structure of para-electric KTN evidently.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 466, Issues 1–2, 20 October 2008, Pages 525–529
نویسندگان
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