کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1592598 | 1002666 | 2013 | 4 صفحه PDF | دانلود رایگان |
A series of calculations are carried out to investigate the electronic band structure of bulk HgTe strained in ab-plane with the assumption of the relaxed-volume and the constant-volume by means of the full potential linearized augmented plane-wave method. Our results show that there is a topological insulating phase induced by the lattice distortions, which is in agreement with previous theoretical and experimental results. Importantly, the distortion-induced band gap is larger than 0.3 eV in either expansion or compression in ab-plane. It is indicated that the bulk HgTe under proper lattice distortions would be possibly made the room temperature application for spintronic devices with low energy consumption.
► The electronic band structures of bulk HgTe strained in ab-plane are investigated.
► There is a topological insulating phase induced by the lattice distortions.
► The distortion-induced band gap is larger than 0.3 eV (equivalent to 3600 K).
► HgTe under proper lattice distortions would be applied to the spintronic devices.
Journal: Solid State Communications - Volume 153, Issue 1, January 2013, Pages 31–34