论文标题
Fe3-Xgete2中的层间磁性
Interlayer magnetism in Fe3-xGeTe2
论文作者
论文摘要
fe $ _ {3-x} $ gete $ _2 $是一种分层的范德华磁料，其订购温度相对较高，各向异性较大。虽然大多数研究都得出结论，层中下令是铁磁性的，但也有报道称，intayer intrayer抗fiferromagnetism in Fe $ _ {3-x} $ gete $ _2 $。在这里，我们通过中子衍射实验，扫描隧道显微镜（STM）和自旋极化的STM测量，密度功能理论以及U计算和STM模拟来研究层间磁有序。我们得出的结论是，Fe $ _ {3-X} $ gete $ _2 $的层是耦合的，是在捕获Fe $ _ {3-x} $ _2 $ gete $ _2 $的磁性和电子属性的情况下，在密度功能理论之内需要考虑Hubbard U更正。
Fe$_{3-x}$GeTe$_2$ is a layered van der Waals magnetic material with a relatively high ordering temperature and large anisotropy. While most studies have concluded the interlayer ordering to be ferromagnetic, there have also been reports of interlayer antiferromagnetism in Fe$_{3-x}$GeTe$_2$. Here, we investigate the interlayer magnetic ordering by neutron diffraction experiments, scanning tunneling microscopy (STM) and spin-polarized STM measurements, density functional theory plus U calculations and STM simulations. We conclude that the layers of Fe$_{3-x}$GeTe$_2$ are coupled ferromagnetically and that in order to capture the magnetic and electronic properties of Fe$_{3-x}$GeTe$_2$ within density functional theory, Hubbard U corrections need to be taken into account.
