Enhanced electrical conductivity and diluted Ir4+ spin orders in electron doped iridates Sr2-xGaxIrO4 | |
Han, Tao1,2; Wang, Yongjian1; Yang, Jun1; He, Lei1; Xu, Junmin1; Liang, Dandan1; Han, Hui1; Ge, M.3; Xi, C. Y.1; Zhu, W. K.1,4 | |
刊名 | APPLIED PHYSICS LETTERS |
2016-11-07 | |
卷号 | 109期号:19页码:1-5 |
DOI | 10.1063/1.4967699 |
文献子类 | Article |
英文摘要 | Sr2IrO4 represents a fascinating system to study comparable electronic correlations and spin-orbit couplings, and recently attracts considerable attention in high-temperature superconductivity. Here, we report on the transport and magnetic properties in gallium-doped Sr2IrO4. A metallic state is discovered when doping x is over 0.1, which could be understood in terms of the quickly decreased energy gap and increased carrier concentration. In addition to the high-temperature magnetic transition (T-C>200 K), a low-temperature one (TC') is also observed for the x = 0.05-0.10 samples. Both of the magnetic states are found to be canted antiferromagnetism. The low-temperature phase is strongly depressed by doping and vanishes when doping is further increased, which is probably stabilized by the long-way exchange interactions of diluted Ir4+ spins via Ir3+ ions. Our studies provide an insight into the electrical and magnetic states tuned by chemical doping in Sr2IrO4, thereby facilitating the seeking of superconductivity in this system. Published by AIP Publishing. |
WOS关键词 | REVERSAL SYMMETRY-BREAKING ; SR2IRO4 ; TRANSITION ; SUPERCONDUCTIVITY ; SR2IR1-XRUXO4 ; SR2RUO4 |
WOS研究方向 | Physics |
语种 | 英语 |
WOS记录号 | WOS:000387999600035 |
资助机构 | National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Key Research and Development Program of China(2016YFA0300404) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; National Natural Science Foundation of China(U1532267) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) ; CASHIPS Director's Fund(YZJJ201516) |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/30189] |
专题 | 合肥物质科学研究院_中科院强磁场科学中心 |
作者单位 | 1.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 4.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Han, Tao,Wang, Yongjian,Yang, Jun,et al. Enhanced electrical conductivity and diluted Ir4+ spin orders in electron doped iridates Sr2-xGaxIrO4[J]. APPLIED PHYSICS LETTERS,2016,109(19):1-5. |
APA | Han, Tao.,Wang, Yongjian.,Yang, Jun.,He, Lei.,Xu, Junmin.,...&Zhang, Yuheng.(2016).Enhanced electrical conductivity and diluted Ir4+ spin orders in electron doped iridates Sr2-xGaxIrO4.APPLIED PHYSICS LETTERS,109(19),1-5. |
MLA | Han, Tao,et al."Enhanced electrical conductivity and diluted Ir4+ spin orders in electron doped iridates Sr2-xGaxIrO4".APPLIED PHYSICS LETTERS 109.19(2016):1-5. |
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