کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1591266 1515570 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ab-initio study of electronic structure and thermodynamic properties of aurates BaAu2O4 and SrAu2O4
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Ab-initio study of electronic structure and thermodynamic properties of aurates BaAu2O4 and SrAu2O4
چکیده انگلیسی
Using ab-initio the Full-Potential Local Orbital minimum basis (FPLO) and Vienna Simulation Package (VASP) methods in the framework of the local density functional theory within the generalized gradient approximation (GGA) the band structure and thermodynamic properties of aurates BaAu2O4, SrAu2O4 and BaSrAu2O4 have been studied. Ab-inito calculations have shown that these systems are semiconductors with the gap between 1.42 and 1.65 eV. The values of gaps decrease with the increase of the volume. The thermodynamic parameters (bulk modulus and Debye temperature) are calculated in the quasi-harmonic Debye-Grüneisen model. Both ab-initio methods give the similar results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 229, March 2016, Pages 10-15
نویسندگان
, ,