Magnetic mechanism investigations on K and Mn co-doped diluted magnetic semiconductor (Sr,K)(Zn,Mn)<sub>2</sub>As<sub>2</sub>

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Magnetic mechanism investigations on K and Mn co-doped diluted magnetic semiconductor (Sr,K)(Zn,Mn)₂As₂

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作者：Jun-Tao Yang ; ^{jtyang@huat.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Shi-Jun Luo ; ^{sjluo@huat.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Yong-Chen Xiong
关键词：Ferromagnetic materials ; Decoupled charge and spin doping ; Electronic structure ; Mn clusters ; First-principles calculations
刊名：Journal of Magnetism and Magnetic Materials
出版年：2016
出版时间：1 June 2016
年：2016
卷：407
期：Complete
页码：334-340
全文大小：2780 K

文摘

•: Sr(Zn,Mn)₂As₂ system is antiferromagnetic without holes doping.
•: Holes drive (Sr,K)(Zn,Mn)₂As₂ system toward ferromagnetism.
•: The ferromagnetism is attributed to the p–d $p - d$ exchange interactions mediated by holes.
•: The nearest neighboring Mn–Mn pairs reduce the measured Mn saturation moments.

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