Torkashvand Ziba, Mirabbaszadeh Kavoos, Shayeganfar Farzaneh, Lee Changgu
Department of Physics and Energy Engineering, Amirkabir University of Technology, Tehran, 15875-4413, Iran.
School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, South Korea.
Sci Rep. 2022 Jun 28;12(1):10919. doi: 10.1038/s41598-022-14594-z.
Magnetism in atomically thin functional materials can be an important phenomenon for exploring two-dimensional magneto-optics. Magneto-optical experimental data have revealed significant Kerr signals in insulator thin films. Here, the magneto-optical Kerr effect of oxygen functionalized and doped hexagonal boron nitride (hBN) has been investigated by performing first-principles calculations. We calculated Kerr angle and Kerr ellipticity for functionalized hBN as an attention-drawn material. Moreover, increasing of oxygen doping percentage leads to the introduction of surface plasmon to hBN. Our findings show that the functionalized hBN can tolerate high-temperature conditions, keeping oxygen atoms bridge-bonded. These giant opto/magnetic responses of insulating 2D materials provide a platform for the potential designing of magneto-optical devices.
原子级薄功能材料中的磁性对于探索二维磁光来说可能是一个重要现象。磁光实验数据已揭示出绝缘体薄膜中存在显著的克尔信号。在此，通过进行第一性原理计算，对氧功能化和掺杂的六方氮化硼（hBN）的磁光克尔效应进行了研究。作为一种引人关注的材料，我们计算了功能化hBN的克尔角和克尔椭圆率。此外，氧掺杂百分比的增加会导致表面等离子体引入到hBN中。我们的研究结果表明，功能化hBN能够耐受高温条件，使氧原子保持桥键连接。这些绝缘二维材料的巨大光/磁响应为磁光器件的潜在设计提供了一个平台。
