Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8961727 | Physics Letters A | 2018 | 5 Pages |
Abstract
Density functional theory has been used to study the electronic and magnetic properties as well as the stability on the hydrogenated BC2N sheets. It is found that two different structures (BC2NH-I and BC2NH-II) with the ferromagnetic ground states can be formed when removing the H atoms from one side of semi-hydrogenated BC2N sheet. By applying tensile strain, both of their magnetisms are robust to 2.0 μB. However, the magnetisms are sensitively changed by compressive strain larger than â6%. The BC2NH-I system can be transitioned from semiconductor to half-metal and then to metal when the compressive strain is changed from â6% to â8%. And the BC2NH-II system can be changed into half-metal by applying the compressive strain between â6% and â7.5%. Our calculation results suggest a possible way to tune the electronic and magnetic properties by choosing the appropriate structural type and the external strain, which would have potential applications in spintronics and nanodevices.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Xiaoling Lü, Shuhui Lv, Yu Shen, Zhenjun Si, Yisong Zheng, Qian Duan,