کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1815691 1525257 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electronic structure and ground-state properties of alkali-metal oxides–Li2O, Na2O, K2O and Rb2O: A first-principles study
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Electronic structure and ground-state properties of alkali-metal oxides–Li2O, Na2O, K2O and Rb2O: A first-principles study
چکیده انگلیسی

Self-consistent scalar-relativistic band structure calculations have been performed to investigate the electronic structure and ground-state properties of alkali-metal oxides Li2O, Na2O, K2O and Rb2O in cubic antifluorite (anti-CaF2-type) structure using the linear muffin-tin orbital in its tight-binding representation (TB-LMTO) method. The calculated ground-state properties of these compounds such as equilibrium lattice parameter and bulk modulus are in agreement with the other theoretical calculations and experimental results. The results of the electronic structure calculations show that Li2O, K2O and Rb2O are indirect band gap semiconductors, whereas Na2O is found to be a direct band gap semiconductor.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 396, Issues 1–2, 15 June 2007, Pages 124–131
نویسندگان
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