论文标题
crte $ _2 $带有单个自旋磁力计的薄片中室温的平面内磁化表征
Characterization of room-temperature in-plane magnetization in thin flakes of CrTe$_2$ with a single spin magnetometer
论文作者
论文摘要
我们展示了室内的铁磁性，并在crte $ _2 $ _2 $ van der wa waals ferromagnet的薄片中具有平面磁各向异性。使用基于钻石中的氮呈缺损的单个自旋磁力计的定量磁成像，我们推断出室温的平面内磁化强度在$ m \ sim 27 $ ka/m的范围内，薄片降低至$ 20 $ nm。此外，我们的测量结果表明，磁化的方向不是仅通过微米大小的CRTE $ _2 $薄片的形状各向异性来确定，这表明存在不可忽略的磁晶型各向异性。这些结果使CRTE $ _2 $成为不断增长的Van Waals Ferromagnets家族的独特系统，因为它是迄今为止已知的唯一材料平台，可提供固有的面内磁化，而curie温度在薄片中$ 300 $ k。
We demonstrate room-temperature ferromagnetism with in-plane magnetic anisotropy in thin flakes of the CrTe$_2$ van der Waals ferromagnet. Using quantitative magnetic imaging with a single spin magnetometer based on a nitrogen-vacancy defect in diamond, we infer a room-temperature in-plane magnetization in the range of $M\sim 27$ kA/m for flakes with thicknesses down to $20$ nm. In addition, our measurements indicate that the orientation of the magnetization is not determined solely by shape anisotropy in micron-sized CrTe$_2$ flakes, which suggest the existence of a non-negligible magnetocrystalline anisotropy. These results make CrTe$_2$ a unique system in the growing family of van der Waals ferromagnets, as it is the only material platform known to date which offers an intrinsic in-plane magnetization and a Curie temperature above $300$ K in thin flakes.
