Electronic and magnetic properties of the Fe2N monolayer film tuned by substrate symmetry
Electronic and magnetic properties of the Fe2N monolayer film tuned by substrate symmetry
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DOI：
10.1088/1361-648x/ab0fbc
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发表时间：
2019-04
期刊：
影响因子：
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通讯作者：
T. Hattori;T. Miyamachi;T. Yokoyama;F. Komori
中科院分区：
文献类型：
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作者：
T. Hattori;T. Miyamachi;T. Yokoyama;F. Komori
铁和N原子之间的强大的键合有可能制造一个铁磁Fe 2N单层的正方形晶格独立的对称性的基板。通过扫描隧道显微镜和X射线吸收光谱/磁性圆二色性的比较，在Cu（1 1 1）和Cu（0 0 1）衬底上的正方形Fe 2 N单层的电子和磁性的性质进行了研究由衬底的对称性调谐。由于Fe_2N单层与Cu（111）衬底的晶格对称性不同，在Cu（111）衬底上形成的条状超晶格对Fe_2N单层产生了周期性的电子调制.的电子和磁性的单分子膜的很大程度上受到与Cu基板和Fe的磁矩的杂交是大大减少相比，在Cu（0 0 1）基板上的单分子膜。
The robust bonding between Fe and N atoms has the potential to fabricate a ferromagnetic Fe2N monolayer of a square lattice independently of the symmetry of the substrate. The electronic and magnetic properties tuned by the symmetry of the substrates are investigated by comparing the results of scanning tunnel microscopy and x-ray absorption spectroscopy/magnetic circular dichroism of the square Fe2N monolayer on the Cu(1 1 1) substrate with that on the Cu(0 0 1) substrate. A periodic electronic modulation of the Fe2N monolayer on the Cu(1 1 1) substrate is induced by the stripe superlattice due to the difference of the lattice symmetry between the Fe2N monolayer and the Cu(1 1 1) substrate. The electronic and magnetic properties of the monolayer are largely affected by the hybridization with the Cu substrate and the Fe magnetic moment is much reduced compared to the monolayer on the Cu(0 0 1) substrate.