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Title: Thickness-dependent polarization-induced intrinsic magnetoelectric effects in L a 0.67 S r 0.33 Mn O 3 / PbZ r 0.52 T i 0.48 O 3 heterostructures

Abstract

The polarization of PbZr 0.52Ti 0.48O 3 thin film is switched by changing film thickness through the competition between the strain relaxation-induced flexoelectric fields and the interfacial effects. Without an applied electric field, this reversal of polarization is exploited to control the magnetic properties of La 0.67Sr 0.33MnO 3 by the competition/cooperation between the charge-mediated and the strain-mediated effects. Scanning transmission electron microscopy, polarized near-edge x-ray absorption spectroscopy, and half-integer diffraction measurements are employed to decode the intrinsic magnetoelectric effects in the La 0.67Sr 0.33MnO 3/PbZr 0.52Ti 0.48O 3 heterostructures. Here, with PbZr 0.52Ti 0.48O 3 films <48nm, the polarization-driven carrier density modulation around the La 0.67Sr 0.33MnO 3/PbZr 0.52Ti 0.48O 3 interface and the strain-mediated Mn 3d orbital occupancy work together to enhance the magnetism of 14-unit-cell La 0.67Sr 0.33MnO 3 film; with PbZr 0.52Ti 0.48O 3 layers > 48nm, the strain-induced change of bond length/angle of MnO 6 accompanied with a modified spin configuration are responsible for the decrease in the Curie temperature and magnetization of 14-unit-cell La 0.67Sr 0.33MnO 3 film.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3];  [4];  [4];  [1];  [4];  [1];  [1];  [4];  [2]; ORCiD logo [1]
  1. National Univ. of Singapore (Singapore)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. National Univ. of Singapore (Singapore); Sun Yat-Sen Univ., Guangdong (China)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1566881
Alternate Identifier(s):
OSTI ID: 1560291
Report Number(s):
BNL-212151-2019-JAAM
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
SC0012704; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 100; Journal Issue: 10; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Yu, Xiaoqian, Wu, Lijun, Zhang, Bangmin, Zhou, Hua, Dong, Yongqi, Wu, Xiaohan, Kou, Ronghui, Yang, Ping, Chen, Jingsheng, Sun, Cheng-Jun, Zhu, Yimei, and Chow, Gan Moog. Thickness-dependent polarization-induced intrinsic magnetoelectric effects in La0.67Sr0.33MnO3/PbZr0.52Ti0.48O3 heterostructures. United States: N. p., 2019. Web. doi:10.1103/PhysRevB.100.104405.
Yu, Xiaoqian, Wu, Lijun, Zhang, Bangmin, Zhou, Hua, Dong, Yongqi, Wu, Xiaohan, Kou, Ronghui, Yang, Ping, Chen, Jingsheng, Sun, Cheng-Jun, Zhu, Yimei, & Chow, Gan Moog. Thickness-dependent polarization-induced intrinsic magnetoelectric effects in La0.67Sr0.33MnO3/PbZr0.52Ti0.48O3 heterostructures. United States. doi:10.1103/PhysRevB.100.104405.
Yu, Xiaoqian, Wu, Lijun, Zhang, Bangmin, Zhou, Hua, Dong, Yongqi, Wu, Xiaohan, Kou, Ronghui, Yang, Ping, Chen, Jingsheng, Sun, Cheng-Jun, Zhu, Yimei, and Chow, Gan Moog. Tue . "Thickness-dependent polarization-induced intrinsic magnetoelectric effects in La0.67Sr0.33MnO3/PbZr0.52Ti0.48O3 heterostructures". United States. doi:10.1103/PhysRevB.100.104405.
@article{osti_1566881,
title = {Thickness-dependent polarization-induced intrinsic magnetoelectric effects in La0.67Sr0.33MnO3/PbZr0.52Ti0.48O3 heterostructures},
author = {Yu, Xiaoqian and Wu, Lijun and Zhang, Bangmin and Zhou, Hua and Dong, Yongqi and Wu, Xiaohan and Kou, Ronghui and Yang, Ping and Chen, Jingsheng and Sun, Cheng-Jun and Zhu, Yimei and Chow, Gan Moog},
abstractNote = {The polarization of PbZr0.52Ti0.48O3 thin film is switched by changing film thickness through the competition between the strain relaxation-induced flexoelectric fields and the interfacial effects. Without an applied electric field, this reversal of polarization is exploited to control the magnetic properties of La0.67Sr0.33MnO3 by the competition/cooperation between the charge-mediated and the strain-mediated effects. Scanning transmission electron microscopy, polarized near-edge x-ray absorption spectroscopy, and half-integer diffraction measurements are employed to decode the intrinsic magnetoelectric effects in the La0.67Sr0.33MnO3/PbZr0.52Ti0.48O3 heterostructures. Here, with PbZr0.52Ti0.48O3 films <48nm, the polarization-driven carrier density modulation around the La0.67Sr0.33MnO3/PbZr0.52Ti0.48O3 interface and the strain-mediated Mn 3d orbital occupancy work together to enhance the magnetism of 14-unit-cell La0.67Sr0.33MnO3 film; with PbZr0.52Ti0.48O3 layers > 48nm, the strain-induced change of bond length/angle of MnO6 accompanied with a modified spin configuration are responsible for the decrease in the Curie temperature and magnetization of 14-unit-cell La0.67Sr0.33MnO3 film.},
doi = {10.1103/PhysRevB.100.104405},
journal = {Physical Review B},
number = 10,
volume = 100,
place = {United States},
year = {2019},
month = {9}
}

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