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A Comparison Study of the Effects of Ba and La Doping in Sr2IrO4: Ir-O-Ir Bond Angle and Carrier Concentration
Han, Tao1,2; Liang, Dandan1,2; Wang, Yongjian1,2; Yang, Jun1,2; Han, Hui1,2; Wang, Jingrong1,2; Gong, Jixiang1,2; Luo, Lei1,2; Zhu, W. K.1,2; Zhang, Changjin1,2; Zhang, Yuheng1,2
2017-12-01
Source PublicationJOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
ISSN1557-1939
Volume30Issue:12Pages:3493-3496
Abstract

We perform a systematic investigation on the effects of Ba and La doping on the lattice and transport properties of Sr2IrO4, which is theoretically predicted to be a host compound of high-temperature superconductivity. We observe a drastic straightening of the Ir-O-Ir bond angle in the Ba-doped samples. The straightening of the bond angle is much weaker in the La-doped samples. It is found that the La doping leads to the introduction of electron-type charge carriers, while the charge carrier concentration does not change too much in the Ba-doped samples. As a result, both the resistivity and the magnetic moments decrease much faster in the La-doped samples, compared to those in the Ba-doped samples. The present results suggest that it is the charge carrier density rather than the Ir-O-Ir bond angle that dominates the magnetic and transport properties of the Sr2IrO4 system.

KeywordHigh-temperature superconductivity Ir-O-Ir bond angle Charge carrier concentration Sr2IrO4
DOI10.1007/s10948-017-4152-z
WOS KeywordPHYSICAL-PROPERTIES ; CRYSTAL
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[11504379] ; National Key Research and Development Program of China[2016YFA0300404] ; National Natural Science Foundation of China[U1532267] ; National Natural Science Foundation of China[51603207] ; National Natural Science Foundation of China[11674327] ; CASHIPS Director's Fund[YZJJ201516]
WOS Research AreaPhysics
WOS SubjectPhysics, Applied ; Physics, Condensed Matter
WOS IDWOS:000415284200020
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/36149
Collection中科院强磁场科学中心
Corresponding AuthorZhu, W. K.; Zhang, Changjin
Affiliation1.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Han, Tao,Liang, Dandan,Wang, Yongjian,et al. A Comparison Study of the Effects of Ba and La Doping in Sr2IrO4: Ir-O-Ir Bond Angle and Carrier Concentration[J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,2017,30(12):3493-3496.
APA Han, Tao.,Liang, Dandan.,Wang, Yongjian.,Yang, Jun.,Han, Hui.,...&Zhang, Yuheng.(2017).A Comparison Study of the Effects of Ba and La Doping in Sr2IrO4: Ir-O-Ir Bond Angle and Carrier Concentration.JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,30(12),3493-3496.
MLA Han, Tao,et al."A Comparison Study of the Effects of Ba and La Doping in Sr2IrO4: Ir-O-Ir Bond Angle and Carrier Concentration".JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 30.12(2017):3493-3496.
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