论文标题
VI3中的大轨道磁矩
Large orbital magnetic moment in VI3
论文作者
论文摘要
V3+离子轨道力矩的存在是范德华（Van der Waals Feromagnet VI3）中磁性本质的开放性问题。与单纯度值相比，巨大的磁晶各向异性与显着降低的有序磁矩相结合提供了强烈但间接的V轨道矩的证据。我们使用X射线磁性圆形二色性的独特能力来确定总磁矩的轨道成分，并首次提供了VI3中V3+离子异常非常可观的轨道力矩的直接证明。我们的XMCD光谱在协同作用中的配体场多重模拟与DFT计算的结果与存在两个具有不同轨道职业的V位点的存在，因此在基态下具有不同的OM幅度。
The existence of the V3+ ion orbital moment is the open issue of the nature of magnetism in the van der Waals ferromagnet VI3. The huge magnetocrystalline anisotropy in conjunction with the significantly reduced ordered magnetic moment compared to the spin-only value provides strong but indirect evidence of a significant V orbital moment. We used the unique capability of X-ray magnetic circular dichroism to determine the orbital component of the total magnetic moment and provide for the first time a direct proof of an exceptionally sizable orbital moment of the V3+ ion in VI3. Our ligand field multiplet simulations of the XMCD spectra in synergy with the results of DFT calculations agree with the existence of two V sites with different orbital occupations and therefore different OM magnitudes in the ground state.
