Control of perpendicular magnetic anisotropy at the Fe/MgO interface by phthalocyanine insertion
Control of perpendicular magnetic anisotropy at the Fe/MgO interface by phthalocyanine insertion
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DOI：
10.1103/physrevb.105.184414
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发表时间：
2022-05-13
影响因子：
3.7
通讯作者：
Miwa, Shinji
中科院分区：
文献类型：
--
作者：
Sakamoto, Shoya;Jackson, Edward;Miwa, Shinji
Perpendicular magnetic anisotropy at an interface between Fe and MgO with Co-phthalocyanine (CoPc) adsorption has been investigated. We find that the CoPc adsorption at an Fe/MgO interface increases the perpendicular magnetic anisotropy energy (PMA) while maintaining the voltage-controlled magnetic anisotropy effect. By performing x-ray magnetic circular dichroism spectroscopy measurements, we reveal that the CoPc adsorption induces hole accumulation at the Fe surface. The origin of the PMA enhancement is attributed to the increased orbital magnetic moment anisotropy of the Fe atoms.
