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Correlation-driven eightfold magnetic anisotropy in a two-dimensional oxide monolayer | |
Cui, Zhangzhang1,2; Grutter, Alexander J.3; Zhou, Hua4; Cao, Hui1,2,4; Dong, Yongqi1,4; Gilbert, Dustin A.3,5; Wang, Jingyuan6; Liu, Yi-Sheng7; Ma, Jiaji8; Hu, Zhenpeng9 | |
2020-04 | |
发表期刊 | SCIENCE ADVANCES |
ISSN | 2375-2548 |
卷号 | 6期号:15 |
发表状态 | 已发表 |
DOI | 10.1126/sciadv.aay0114 |
摘要 | Engineering magnetic anisotropy in two-dimensional systems has enormous scientific and technological implications. The uniaxial anisotropy universally exhibited by two-dimensional magnets has only two stable spin directions, demanding 180 degrees spin switching between states. We demonstrate a previously unobserved eightfold anisotropy in magnetic SrRuO3 monolayers by inducing a spin reorientation in (SrRuO3)(l)/(SrTiO3)(N) superlattices, in which the magnetic easy axis of Ru spins is transformed from uniaxial (001) direction (N < 3) to eightfold (111) directions (N >= 3). This eightfold anisotropy enables 71 degrees and 109 degrees spin switching in SrRuO3 monolayers, analogous to 71 degrees and 109 degrees polarization switching in ferroelectric BiFeO3. First-principle calculations reveal that increasing the SrTiO3 layer thickness induces an emergent correlation-driven orbital ordering, tuning spin-orbit interactions and reorienting the SrRuO3 monolayer easy axis. Our work demonstrates that correlation effects can be exploited to substantially change spin-orbit interactions, stabilizing unprecedented properties in two-dimensional magnets and opening rich opportunities for low-power, multistate device applications. |
URL | 查看原文 |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
资助项目 | Shanghai Pujiang Talents Program[17PJ1407300] |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000525751400010 |
出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
EI入藏号 | 20201608427365 |
EI主题词 | Bismuth compounds ; Iron compounds ; Magnetism ; Magnets ; Monolayers ; Ruthenium compounds ; Spin orbit coupling ; Strontium titanates ; Titanium compounds |
EI分类号 | Magnetism: Basic Concepts and Phenomena:701.2 ; Chemical Products Generally:804 |
WOS关键词 | WEAK FERROMAGNETISM ; SUPERCONDUCTIVITY ; HETEROSTRUCTURES ; COEXISTENCE ; ORDER ; SPIN |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/119388 |
专题 | 物质科学与技术学院_PI研究组_翟晓芳组 |
通讯作者 | Chen, Hanghui; Zhai, Xiaofang |
作者单位 | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China 3.NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA 4.Argonne Natl Lab, Adv Photon Source, Lemont, IL 60439 USA 5.Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA 6.Univ Calif Irvine, Dept Phys, Irvine, CA 92697 USA 7.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA 8.NYU Shanghai, NYU ECNU Inst Phys, Shanghai 200122, Peoples R China 9.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 10.Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA |
通讯作者单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Cui, Zhangzhang,Grutter, Alexander J.,Zhou, Hua,et al. Correlation-driven eightfold magnetic anisotropy in a two-dimensional oxide monolayer[J]. SCIENCE ADVANCES,2020,6(15). |
APA | Cui, Zhangzhang.,Grutter, Alexander J..,Zhou, Hua.,Cao, Hui.,Dong, Yongqi.,...&Lu, Yalin.(2020).Correlation-driven eightfold magnetic anisotropy in a two-dimensional oxide monolayer.SCIENCE ADVANCES,6(15). |
MLA | Cui, Zhangzhang,et al."Correlation-driven eightfold magnetic anisotropy in a two-dimensional oxide monolayer".SCIENCE ADVANCES 6.15(2020). |
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