arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.01094cond-mat.mtrl-scicond-mat.str-el
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Fe3-xGeTe2的层间磁性

Interlayer magnetism in Fe3-xGeTe2

Xiangru Kong, Giang D. Nguyen, Jinhwan Lee, Changgu Lee, Stuart Calder, Andrew F. May, Zheng Gai, An-Ping Li, Liangbo Liang, Tom Berlijn

摘要:

Fe $_{3-x}$ GeTe $_2$是具有相对高的有序温度和大的各向异性的层状范德华磁性材料。虽然大多数研究已经得出结论,层间有序是铁磁性的,但也有报道称Fe $_{3-x}$ GeTe $_2$中存在层间反铁磁性。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STM测量,密度泛函理论加U计算和STM模拟研究层间磁有序。我们的结论是铁磁耦合层的Fe $_{3-x}$ GeTe $_2$和为了捕获的磁性和电子性能的Fe $_{3-x}$ GeTe $_2$在密度泛函理论,哈伯德U校正需要考虑。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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