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Oxygen deficiency and cooling field driven vertical hysteretic shift in epitaxial SrRuO3/SrTiO3heterostructures
Zheng, Ming1,2; Li, Xueyan3; Xiao, Wen2; Wang, Wei4; Ni, Hao1,5
2017
Source PublicationApplied Physics Letters
ISSN00036951
Volume111Issue:15
AbstractSrRuO3thin films have been epitaxially grown on SrTiO3substrates using a pulsed laser deposition technique. By adjusting the oxygen partial pressure during deposition, a sharp drop in the Curie temperature (T C) of 95 K and vertical magnetization shift (M Shift) of 82.7% in the hysteresis loop was observed due to the oxygen deficiency induced lattice distortion that modifies the strong hybridization of p-d orbitals and perpendicular uniaxial magnetic anisotropy. In particular, the vertical hysteretic shift can also be effectively tuned by the applied cooling field, and thus, we obtained a giant and complete M Shift of 106% with a large volume of pinned Ru4+moments. These findings reveal the critical role played by intrinsic oxygen defects and extrinsic cooling field in controlling magnetic couplings in this perovskite-type complex oxide system. © 2017 Author(s).
DOI10.1063/1.5000866
EI Accession Number20174204281156
EI KeywordsRuthenium compounds
EI Classification Number482.2 Minerals - 602 Mechanical Drives and Transmissions - 641.2 Heat Transfer - 701.2 Magnetism: Basic Concepts and Phenomena - 708.4 Magnetic Materials - 744.9 Laser Applications - 804 Chemical Products Generally - 961 Systems Science
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25685
Collection中国科学院上海硅酸盐研究所
Affiliation1.Department of Physics, University of Hong Kong, Pokfulam Road, Hong Kong;
2.Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore; 117574, Singapore;
3.Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing; 210094, China;
4.CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 201899, China;
5.College of Science, China University of Petroleum, Qingdao; 255680, China
Recommended Citation
GB/T 7714
Zheng, Ming,Li, Xueyan,Xiao, Wen,et al. Oxygen deficiency and cooling field driven vertical hysteretic shift in epitaxial SrRuO3/SrTiO3heterostructures[J]. Applied Physics Letters,2017,111(15).
APA Zheng, Ming,Li, Xueyan,Xiao, Wen,Wang, Wei,&Ni, Hao.(2017).Oxygen deficiency and cooling field driven vertical hysteretic shift in epitaxial SrRuO3/SrTiO3heterostructures.Applied Physics Letters,111(15).
MLA Zheng, Ming,et al."Oxygen deficiency and cooling field driven vertical hysteretic shift in epitaxial SrRuO3/SrTiO3heterostructures".Applied Physics Letters 111.15(2017).
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