Effects of structure modulation on the magnetic properties in diluted magnetic semiconductor Li1+yZn0.9Mn0.1As1.0

被引：2
作者：
Shen, X. [1 ]
Deng, Z. [1 ]
Li, Z. [2 ]
Gu, B. [3 ,4 ,5 ]
He, L. H. [1 ,6 ]
Yao, Y. [1 ]
Jin, C. Q. [1 ,5 ]
Yu, R. C. [1 ,5 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100190, Peoples R China
[2] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
[3] Univ Chinese Acad Sci, Kavli Inst Theoret Sci, Beijing 100190, Peoples R China
[4] Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China
[5] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China
[6] Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
来源：
PHYSICAL REVIEW MATERIALS | 2020年 / 4卷 / 09期
基金：
中国国家自然科学基金;
关键词：
FERROMAGNETISM; SPINTRONICS;
D O I：
10.1103/PhysRevMaterials.4.094412
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The emergence of spintronic applications has stimulated intense interest due to expectations for new functionalities and devices. However, in a I-II-V diluted magnetic semiconductor Li(Zn, Mn)As system as a corresponding material, the mechanism of the doping and ferromagnetism is not clear yet. Here, we used aberration-corrected scanning transmission electron microscopy to investigate the microstructures of the paramagnetic and ferromagnetic Li1+yZn0.9Mn0.1As1.0 (nominal composition: Li1.0Zn0.9Mn0.1As1.0 and Li1.1Zn0.9Mn0.1As1.0) compounds at atomic scale. Our results provide clear evidence that superstructures exist in a diluted magnetic semiconductor. We also reveal the origin of the modulated structure of the Li(Zn, Mn)As system. With the above studies, we indicate the relationship between the structure and magnetism, and investigate the charge and spin controlling mechanism in the diluted magnetic semiconductor. Our studies may provide a way to search for diluted magnetic semiconductors with novel and excellent properties.
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页数：6
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