Theoretical Investigation of All Optical Switching by Intersystem Crossing

被引：0
作者：
Zou, Yuhao [1 ]
Wang, Haiwei [1 ]
Huang, Haozhe [1 ]
Zeng, Zhihao [1 ]
Wang, Kai [2 ]
Wang, Sicong [3 ]
Li, Xiangping [3 ]
Xie, Changsheng [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
[3] Jinan Univ, Inst Photon Technol, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2020年 / 10卷 / 01期
基金：
中国国家自然科学基金;
关键词：
intersystem crossing; spin-orbit coupling; all-optical switching; angular momentum; SPIN-ORBIT; ULTRAFAST; MANIPULATION;
D O I：
10.3390/app10010128
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The dynamics of spin flips induced by the femtosecond laser are theoretically investigated in this article. The spin flips in this scenario are attributed to the intersystem crossing (ISC) described within the frame of the Rabi model. This new explanation is a step attempting to explain the mechanism of the all-optical magnetic orientation switching in the perspective of the conservation of the angular momentum and breaks of the selection rule, which is ignored in the Raman scattering related explanations. The final spin states discussed herein are closely related to the intensity of the incident laser and the ISC decay rate. The quantitative analysis of the relation between decay rate, temperature and the intensity of the laser is discussed.
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页数：10
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