论文标题
通过超快界面能量转移的抗铁磁性抗铁磁剂量的间接光学操纵
Indirect optical manipulation of the antiferromagnetic order of insulating NiO by ultrafast interfacial energy transfer
论文作者
论文摘要
我们报告了PT/Nio BiLayer中绝缘膜的抗铁磁剂的超快（子）降低的（子）降低。强烈的光学激发后，纯Nio薄膜中不存在这种抗铁磁序的减少。这种超快现象归因于从PT层的光学激发电子系统进入NIO自旋系统的超快和高效的能量转移。我们建议这种能量转移是通过PT/NIO界面上热PT电子的随机交换散射介导的。
We report the ultrafast, (sub)picosecond reduction of the antiferromagnetic order of the insulating NiO thin film in a Pt/NiO bilayer. This reduction of the antiferromagnetic order is not present in pure NiO thin films after a strong optical excitation. This ultrafast phenomenon is attributed to an ultrafast and highly efficient energy transfer from the optically excited electron system of the Pt layer into the NiO spin system. We propose that this energy transfer is mediated by a stochastic exchange scattering of hot Pt electrons at the Pt/NiO interface.
