Emergent electric field control of phase transformation in oxide superlattices

被引:48
|
作者
Yi, Di [1 ]
Wang, Yujia [2 ,3 ]
van't Erve, Olaf M. J. [4 ]
Xu, Liubin [5 ]
Yuan, Hongtao [6 ,7 ]
Veit, Michael J. [1 ,8 ]
Balakrishnan, Purnima P. [1 ,9 ]
Choi, Yongseong [10 ]
N'Diaye, Alpha T. [11 ]
Shafer, Padraic [11 ]
Arenholz, Elke [11 ,12 ]
Grutter, Alexander [13 ]
Xu, Haixuan [5 ]
Yu, Pu [2 ,3 ,14 ,15 ]
Jonker, Berend T. [4 ]
Suzuki, Yuri [1 ,8 ]
机构
[1] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA
[2] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
[3] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[4] US Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA
[5] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
[6] Nanjing Univ, Coll Engn & Appl Sci, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[7] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
[8] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
[9] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[10] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[11] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA
[12] Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA
[13] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA
[14] Frontier Sci Ctr Quantum Informat, Beijing 100084, Peoples R China
[15] RIKEN Ctr Emergent Matter Sci CEMS, Wako, Saitama 3510198, Japan
基金
美国国家科学基金会;
关键词
METAL-INSULATOR-TRANSITION;
D O I
10.1038/s41467-020-14631-3
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Electric fields can transform materials with respect to their structure and properties, enabling various applications ranging from batteries to spintronics. Recently electrolytic gating, which can generate large electric fields and voltage-driven ion transfer, has been identified as a powerful means to achieve electric-field-controlled phase transformations. The class of transition metal oxides provide many potential candidates that present a strong response under electrolytic gating. However, very few show a reversible structural transformation at room-temperature. Here, we report the realization of a digitally synthesized transition metal oxide that shows a reversible, electric-field-controlled transformation between distinct crystalline phases at room-temperature. In superlattices comprised of alternating one-unit-cell of SrIrO3 and La0.2Sr0.8MnO3, we find a reversible phase transformation with a 7% lattice change and dramatic modulation in chemical, electronic, magnetic and optical properties, mediated by the reversible transfer of oxygen and hydrogen ions. Strikingly, this phase transformation is absent in the constituent oxides, solid solutions and larger period superlattices. Our findings open up this class of materials for voltage-controlled functionality.
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页数:8
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