کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7987887 1515530 2018 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electronic, phonon and superconducting properties of LaPtBi half-Heusler compound
ترجمه فارسی عنوان
خواص الکترونیک، فونون و ابررسانایی ترکیبات ناپایدار لاپتبی نیمه هوسرر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی
In the framework of density functional theory based on plane wave pseudopotential method and linear response technique, we have studied the electronic, phonon and superconducting properties of LaPtBi half-Heusler compound. The electronic band structure and density of states show that it is gapless semiconductor which is consistent with previous results. The positive phonon frequencies confirm the stability of this compound in cubic MgAgAs phase. Superconductivity is studied in terms of Eliashberg spectral function (α2F(ω)), electron-phonon coupling constants (λ). The value of electron-phonon coupling parameter is found to be 0.41 and the superconducting transition temperature is calculated to be 0.76 K, in excellent agreement with the experimentally reported values.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 273, May 2018, Pages 1-4
نویسندگان
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