X-ray absorption study of nickel doping on electronic properties of ZnCr2Se4

P. Zajdel; I. Jendrzejewska; J. Goraus

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X-ray absorption study of nickel doping on electronic properties of ZnCr2Se4

机译：镍掺杂对ZnCr2Se4电子性能的X射线吸收研究

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We present temperature dependant studies of Cr K, Ni K and Se K absorption edges of ZnCr_(1.8)Ni_(0.2)Se4 and NiCr2Se4. The EXAFS and XANES analysis is consistent with nickel located on the octahedral site. The experiment is compared with the results of the FPLO-CPA numerical calculations and the angular momentum projected densities of states. The calculations reveal that both nickel (0.5μ_B) and selenium (0.1 μ_B) possess magnetic moment and are polarised opposite to chromium (3.1μ_B). Calculation results imply contribution from Se 4p electrons to the magnetism and Cr/Ni 4s to charge balance of the system.

机译：我们目前对ZnCr_（1.8）Ni_（0.2）Se4和NiCr2Se4的Cr K，Ni K和Se K吸收边的温度依赖性研究。 EXAFS和XANES分析与八面体位点上的镍一致。将实验与FPLO-CPA数值计算的结果以及状态的角动量投影密度进行了比较。计算表明，镍（0.5μB）和硒（0.1μB）都具有磁矩，并且与铬（3.1μB）极性相反。计算结果表明，Se 4p电子对磁性和Cr / Ni 4s对系统电荷平衡的贡献。

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《Radiation Physics and Chemistry》 |2011年第10期|共6页
作者
P. Zajdel; I. Jendrzejewska; J. Goraus;
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正文语种 eng
中图分类光学;
关键词
XAFS; FPLO-CPA; Spinels; Selenides;

机译：XAFS;FPLO-CPA;尖晶石;硒化物;

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1. X-ray absorption study of nickel doping on electronic properties of ZnCr2Se4 [J] . P. Zajdel, I. Jendrzejewska, J. Goraus Radiation Physics and Chemistry . 2011,第10期

机译：镍掺杂对ZnCr2Se4电子性能的X射线吸收研究
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X-ray absorption study of nickel doping on electronic properties of ZnCr2Se4

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