The Effect of K and P Doping on the Structure and Electronic Structure of SrFe2As2

K- and P-doped SrFe2As2 belong to hole doping and isovalent doping, respectively, and their effects on the band, Fermi surface, and partial density of states of Fe 3d and As 4p orbitals are also significantly different. However, these two types of doping consistently follow the rule that reducing th...

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Bibliographic Details
Published inJOM (1989) Vol. 76; no. 7; pp. 3888 - 3895
Main Authors Li, Li, Zhang, Zhihua, He, Ming, Lin, Long, Tao, Hualong, Cui, Yan, Wang, Weifang, Liu, Qinghui, Chen, Liyu, Wang, Hongli, Jia, Dongfang
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.07.2024
Subjects
Antiferromagnetism
Density of states
Doping
Electronic structure
Electrons
Fermi surfaces
Phase transitions
Superconductivity
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Summary:K- and P-doped SrFe2As2 belong to hole doping and isovalent doping, respectively, and their effects on the band, Fermi surface, and partial density of states of Fe 3d and As 4p orbitals are also significantly different. However, these two types of doping consistently follow the rule that reducing the Fe ions height can quickly suppress antiferromagnetic order. Compared with the As-Fe-As angle, Fe-As bond length, and Fe-Fe distance, the decrease in Fe ions height more directly and quickly suppresses antiferromagnetic order, and the total density of states in the range of - 1.5 eV to ~ 1.5 eV exhibits similar properties in K and P doping in the process of 25% K- and 12.5% P-doped SrFe2As2.
ISSN:1047-4838
DOI:10.1007/sll837-024-06591-6