Zuntu Abdullahi Yusuf, Demir Vatansever Zeynep, Aktürk Ethem, Akıncı Ümit, Üzengi Aktürk Olcay
Department of Physics, Adnan Menderes University, Aydın, 09010, Turkey.
Phys Chem Chem Phys. 2020 May 21;22(19):10893-10899. doi: 10.1039/d0cp00503g. Epub 2020 May 6.
Exploring the magnetic properties of two-dimensional (2D) metal boride (MBene) sheets for spin-based electronics is gaining importance for developing electronic devices. Through combined first-principles calculations and Monte Carlo simulations, we present a new tetragonal MnB (tetra-MnB) sheet. The tetra-MnB sheet shows metallic ferromagnetism (2.65 μ per Mn atom) with excellent stability. Moreover, it is demonstrated that the tetra-MnB sheet holds promise for experimental synthesis within an acceptable range from the results of stability tests of tetra-MnB. We also find that the magnetic anisotropy (MAE) of the 2D tetra-MnB sheet is significantly increased under an electric field. The Curie temperature (T) of the tetra-MnB sheet is calculated as 406 K. This 2D tetra-MnB with a high Curie temperature can serve as a promising candidate for future magnetoelectronics applications.
探索二维（2D）金属硼化物（MBene）薄片用于自旋电子学的磁性能对于开发电子设备正变得越来越重要。通过结合第一性原理计算和蒙特卡罗模拟，我们展示了一种新型四方晶系的MnB（tetra-MnB）薄片。tetra-MnB薄片表现出金属铁磁性（每个锰原子2.65 μ）且具有出色的稳定性。此外，从tetra-MnB的稳定性测试结果来看，证明tetra-MnB薄片在可接受的范围内具备实验合成的前景。我们还发现，二维tetra-MnB薄片在电场作用下磁各向异性（MAE）显著增加。tetra-MnB薄片的居里温度（T）计算为406 K。这种具有高居里温度的二维tetra-MnB可作为未来磁电子学应用的一个有前景的候选材料。
