کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1498018 | 1510882 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical properties of Bi2Te3 topological insulator investigated by density functional theory and nanoindentation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Mechanical properties of Bi2Te3 topological insulator investigated by density functional theory and nanoindentation Mechanical properties of Bi2Te3 topological insulator investigated by density functional theory and nanoindentation](/preview/png/1498018.png)
چکیده انگلیسی
The elastic constants Cij of bulk Bi2Te3 were calculated by density functional theory by different approximations. Computational results were validated by means of nanoindentation tests, performed along the directions parallel and perpendicular to the cleavage plane of Bi2Te3. The indentation modulus was estimated and compared with the experimental one. The generalized gradient Perdew-Burke-Ernzerhof approximation better reproduces experimental results in the direction perpendicular to the cleavage plane, whereas the occurrence of the nanobuckling in the direction parallel to the cleavage plane causes discrepancies between theoretical and experimental findings.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 121, August 2016, Pages 50–55
Journal: Scripta Materialia - Volume 121, August 2016, Pages 50–55
نویسندگان
C. Lamuta, D. Campi, A. Cupolillo, Z.S. Aliev, M.B. Babanly, E.V. Chulkov, A. Politano, L. Pagnotta,