کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10714231 1025576 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phonons and related crystal properties in indium phosphide under pressure
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Phonons and related crystal properties in indium phosphide under pressure
چکیده انگلیسی
Based on the pseudopotential approach, the lattice vibration and polaron properties in InP under pressure up to 8 GPa have been investigated. At zero pressure, our calculated values for all features of interest are in reasonable agreement with data available in literature. Upon compression, the optical phonon modes at Γ point in the Brillouin zone are shifted towards high energies and their frequencies display a blueshift with rising pressure. The splitting of the longitudinal and transverse optical phonons narrows under pressure, indicating thus a decrease of the ionicity of InP crystal with pressure. It is observed that all physical quantities being studied in this contribution behave monotonically upon compression. To the best of the author's knowledge, the pressure dependence of the polaron properties for InP in the present study is reported for the first time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 406, Issue 13, 1 July 2011, Pages 2583-2587
نویسندگان
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