کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1862223 1037570 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Strain and chirality effects on the mechanical and electronic properties of silicene and silicane under uniaxial tension
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Strain and chirality effects on the mechanical and electronic properties of silicene and silicane under uniaxial tension
چکیده انگلیسی

We present first principles theory calculations on the mechanical and electronic properties of silicene and silicane structure under uniaxial tensile strain along different directions. Chirality effect is more significant in the mechanical properties of silicene than those of silicane. Different failure mechanisms are identified. A small band gap (up to 0.8 eV) is developed from zero with silicene structure under uniaxial tension and vanishes before the structure reaches its in-plane ultimate strength. However, a pre-existing band gap (2.39 eV) exists with silicane structure and decreases to zero with the increasing tensile strain without chirality effects.


► Strength/stiffness of silicene and silicane are studied by ab initio calculation.
► Different failure mechanisms are identified.
► Band gap of silicene and silicane have different behaviors under strain.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 376, Issue 46, 15 October 2012, Pages 3546–3550
نویسندگان
,