Manipulating multiple order parameters via oxygen vacancies: The case of e u0.5 B a0.5Ti O3-δ

Weiwei Li; Qian He; Le Wang; Huizhong Zeng; John Bowlan; Langsheng Ling; Dmitry A. Yarotski; Wenrui Zhang; Run Zhao; Jiahong Dai; Junxing Gu; Shipeng Shen; Haizhong Guo; Li Pi; Haiyan Wang; Yongqiang Wang; Ivan A. Velasco-Davalos; Yangjiang Wu; Zhijun Hu; Bin Chen; Run Wei Li; Young Sun; Kuijuan Jin; Yuheng Zhang; Hou Tong Chen; Sheng Ju; Andreas Ruediger; Daning Shi; Albina Y. Borisevich; Hao Yang

doi:10.1103/PhysRevB.96.115105

Manipulating multiple order parameters via oxygen vacancies: The case of e u0.5 B a0.5Ti O3-δ

Weiwei Li
, Qian He
, Le Wang
, Huizhong Zeng
, John Bowlan
, Langsheng Ling
, Dmitry A. Yarotski
, Wenrui Zhang
, Run Zhao
, Jiahong Dai
, Junxing Gu
, Shipeng Shen
, Haizhong Guo
, Li Pi
, Haiyan Wang
, Yongqiang Wang
, Ivan A. Velasco-Davalos
, Yangjiang Wu
, Zhijun Hu
, Bin Chen

Run Wei Li, Young Sun, Kuijuan Jin, Yuheng Zhang, Hou Tong Chen, Sheng Ju, Andreas Ruediger, Daning Shi, Albina Y. Borisevich, Hao Yang

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Controlling functionalities, such as magnetism or ferroelectricity, by means of oxygen vacancies (VO) is a key issue for the future development of transition-metal oxides. Progress in this field is currently addressed through VO variations and their impact on mainly one order parameter. Here we reveal a mechanism for tuning both magnetism and ferroelectricity simultaneously by using VO. Combining experimental and density-functional theory studies of Eu0.5Ba0.5TiO3-δ, we demonstrate that oxygen vacancies create Ti3+3d1 defect states, mediating the ferromagnetic coupling between the localized Eu 4f7 spins, and increase an off-center displacement of Ti ions, enhancing the ferroelectric Curie temperature. The dual function of Ti sites also promises a magnetoelectric coupling in the Eu0.5Ba0.5TiO3-δ.

Original language	English
Article number	115105
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	96
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.96.115105
State	Published - Sep 6 2017

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Li, W., He, Q., Wang, L., Zeng, H., Bowlan, J., Ling, L., Yarotski, D. A., Zhang, W., Zhao, R., Dai, J., Gu, J., Shen, S., Guo, H., Pi, L., Wang, H., Wang, Y., Velasco-Davalos, I. A., Wu, Y., Hu, Z., ... Yang, H. (2017). Manipulating multiple order parameters via oxygen vacancies: The case of e u0.5 B a0.5Ti O3-δ. Physical Review B - Condensed Matter and Materials Physics, 96(11), Article 115105. https://doi.org/10.1103/PhysRevB.96.115105

@article{7c522512385945debcbf0978274b8773,

title = "Manipulating multiple order parameters via oxygen vacancies: The case of e u0.5 B a0.5Ti O3-δ",

abstract = "Controlling functionalities, such as magnetism or ferroelectricity, by means of oxygen vacancies (VO) is a key issue for the future development of transition-metal oxides. Progress in this field is currently addressed through VO variations and their impact on mainly one order parameter. Here we reveal a mechanism for tuning both magnetism and ferroelectricity simultaneously by using VO. Combining experimental and density-functional theory studies of Eu0.5Ba0.5TiO3-δ, we demonstrate that oxygen vacancies create Ti3+3d1 defect states, mediating the ferromagnetic coupling between the localized Eu 4f7 spins, and increase an off-center displacement of Ti ions, enhancing the ferroelectric Curie temperature. The dual function of Ti sites also promises a magnetoelectric coupling in the Eu0.5Ba0.5TiO3-δ.",

author = "Weiwei Li and Qian He and Le Wang and Huizhong Zeng and John Bowlan and Langsheng Ling and Yarotski, \{Dmitry A.\} and Wenrui Zhang and Run Zhao and Jiahong Dai and Junxing Gu and Shipeng Shen and Haizhong Guo and Li Pi and Haiyan Wang and Yongqiang Wang and Velasco-Davalos, \{Ivan A.\} and Yangjiang Wu and Zhijun Hu and Bin Chen and Li, \{Run Wei\} and Young Sun and Kuijuan Jin and Yuheng Zhang and Chen, \{Hou Tong\} and Sheng Ju and Andreas Ruediger and Daning Shi and Borisevich, \{Albina Y.\} and Hao Yang",

year = "2017",

month = sep,

day = "6",

doi = "10.1103/PhysRevB.96.115105",

language = "English",

volume = "96",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "11",

}

Li, W, He, Q, Wang, L, Zeng, H, Bowlan, J, Ling, L, Yarotski, DA, Zhang, W, Zhao, R, Dai, J, Gu, J, Shen, S, Guo, H, Pi, L, Wang, H, Wang, Y, Velasco-Davalos, IA, Wu, Y, Hu, Z, Chen, B, Li, RW, Sun, Y, Jin, K, Zhang, Y, Chen, HT, Ju, S, Ruediger, A, Shi, D, Borisevich, AY & Yang, H 2017, 'Manipulating multiple order parameters via oxygen vacancies: The case of e u0.5 B a0.5Ti O3-δ', Physical Review B - Condensed Matter and Materials Physics, vol. 96, no. 11, 115105. https://doi.org/10.1103/PhysRevB.96.115105

TY - JOUR

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T2 - The case of e u0.5 B a0.5Ti O3-δ

AU - Li, Weiwei

AU - He, Qian

AU - Wang, Le

AU - Zeng, Huizhong

AU - Bowlan, John

AU - Ling, Langsheng

AU - Yarotski, Dmitry A.

AU - Zhang, Wenrui

AU - Zhao, Run

AU - Dai, Jiahong

AU - Gu, Junxing

AU - Shen, Shipeng

AU - Guo, Haizhong

AU - Pi, Li

AU - Wang, Haiyan

AU - Wang, Yongqiang

AU - Velasco-Davalos, Ivan A.

AU - Wu, Yangjiang

AU - Hu, Zhijun

AU - Chen, Bin

AU - Li, Run Wei

AU - Sun, Young

AU - Jin, Kuijuan

AU - Zhang, Yuheng

AU - Chen, Hou Tong

AU - Ju, Sheng

AU - Ruediger, Andreas

AU - Shi, Daning

AU - Borisevich, Albina Y.

AU - Yang, Hao

PY - 2017/9/6

Y1 - 2017/9/6

N2 - Controlling functionalities, such as magnetism or ferroelectricity, by means of oxygen vacancies (VO) is a key issue for the future development of transition-metal oxides. Progress in this field is currently addressed through VO variations and their impact on mainly one order parameter. Here we reveal a mechanism for tuning both magnetism and ferroelectricity simultaneously by using VO. Combining experimental and density-functional theory studies of Eu0.5Ba0.5TiO3-δ, we demonstrate that oxygen vacancies create Ti3+3d1 defect states, mediating the ferromagnetic coupling between the localized Eu 4f7 spins, and increase an off-center displacement of Ti ions, enhancing the ferroelectric Curie temperature. The dual function of Ti sites also promises a magnetoelectric coupling in the Eu0.5Ba0.5TiO3-δ.

AB - Controlling functionalities, such as magnetism or ferroelectricity, by means of oxygen vacancies (VO) is a key issue for the future development of transition-metal oxides. Progress in this field is currently addressed through VO variations and their impact on mainly one order parameter. Here we reveal a mechanism for tuning both magnetism and ferroelectricity simultaneously by using VO. Combining experimental and density-functional theory studies of Eu0.5Ba0.5TiO3-δ, we demonstrate that oxygen vacancies create Ti3+3d1 defect states, mediating the ferromagnetic coupling between the localized Eu 4f7 spins, and increase an off-center displacement of Ti ions, enhancing the ferroelectric Curie temperature. The dual function of Ti sites also promises a magnetoelectric coupling in the Eu0.5Ba0.5TiO3-δ.

UR - https://www.scopus.com/pages/publications/85030098938

U2 - 10.1103/PhysRevB.96.115105

DO - 10.1103/PhysRevB.96.115105

M3 - Article

SN - 1098-0121

VL - 96

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 11

M1 - 115105

ER -

Manipulating multiple order parameters via oxygen vacancies: The case of e u0.5 B a0.5Ti O3-δ

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