论文标题
准2D抗铁磁铁中的木磷杂交MNPSE $ _3 $
Magnon-phonon hybridization in quasi-2D antiferromagnet MnPSe$_3$
论文作者
论文摘要
从基本和应用的角度来看，范德华（VDW）材料（尤其是在二维（2D）极限）中的磁激发是一个令人兴奋的研究主题。使用依赖温度的磁性 - 拉曼光谱法，我们确定了两种磁刺激的杂交与MNPSE $ _3 $中的两个单独的E $ _ \ Mathrm {G} $ Phonons的杂交，这是一种磁性VDW材料，可以潜在地宿主2D抗FiferMagnetism。从第一原理计算的声子和磁子光谱的结果进一步支持了我们的识别。拉曼光谱通过磁过渡的丰富温度依赖性显示出声子频率中避免的行为，并同时降低了其寿命。我们基于离散级别和连续体之间的相互作用来构建模型，该模型再现了这些观察结果。强烈的木含量杂交此处报道，需要了解其对磁性VDW材料中自旋传输实验的影响。
Magnetic excitations in van der Waals (vdW) materials, especially in the two-dimensional (2D) limit, are an exciting research topic from both the fundamental and applied perspectives. Using temperature-dependent, magneto-Raman spectroscopy, we identify the hybridization of two-magnon excitations with two separate E$_\mathrm{g}$ phonons in MnPSe$_3$, a magnetic vdW material that could potentially host 2D antiferromagnetism. Results from first principles calculations of the phonon and magnon spectra further support our identification. The Raman spectra's rich temperature dependence through the magnetic transition displays an avoided-crossing behavior in the phonons' frequency and a concurrent decrease in their lifetimes. We construct a model based on the interaction between a discrete level and a continuum that reproduces these observations. The strong magnon-phonon hybridization reported here highlights the need to understand its effects on spin transport experiments in magnetic vdW materials.
