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Title: Interface reconstruction with emerging charge ordering in hexagonal manganite

Abstract

Multiferroic materials, which simultaneously have multiple orderings, hold promise for use in the next generation of memory devices. We report a novel self-assembled MnO double layer forming at the interface between a multiferroic YMnO3 film and a c-Al2O3 substrate. The crystal structures and the valence states of this MnO double layer were studied by atomically resolved scanning transmission electron microscopy and spectroscopy, as well as density functional theory (DFT) calculations. A new type of charge ordering has been identified within this MnO layer, which also contributes to a polarization along the [001] direction. DFT calculations further establish the occurrence of multiple couplings between charge and lattice in this novel double layer, in addition to the polarization in nearby YMnO3 single layer. The interface reconstruction reported here creates a new playground for emergent physics, such as giant ferroelectricity and strong magnetoelectric coupling, in manganite systems.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3];  [4];  [3]; ORCiD logo [3];  [3]; ORCiD logo [5];  [6]; ORCiD logo [4]; ORCiD logo [3]
+ Show Author Affiliations
  1. Tsinghua Univ., Beijing (China). School of Materials Science and Engineering; Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Condensed Matter Physics and Materials Science
  2. Univ. of Arkansas, Fayetteville, AR (United States). Physics Dept. and Inst. for Nanoscience and Engineering; Tsinghua Univ., Beijing (China). State Key Lab. of Low-Dimensional Quantum Physics and Collaborative Innovation Center of Quantum Matter, Dept. of Physics
  3. Tsinghua Univ., Beijing (China). School of Materials Science and Engineering
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Condensed Matter Physics and Materials Science
  5. Tsinghua Univ., Beijing (China). State Key Lab. of Low-Dimensional Quantum Physics and Collaborative Innovation Center of Quantum Matter, Dept. of Physics
  6. Univ. of Arkansas, Fayetteville, AR (United States). Physics Dept. and Inst. for Nanoscience and Engineering
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1462404
Report Number(s):
BNL-207873-2018-JAAM
Journal ID: ISSN 2375-2548
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 4; Journal Issue: 5; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

Citation Formats

Cheng, Shaobo, Xu, Changsong, Deng, Shiqing, Han, Myung-Geun, Bao, Shanyong, Ma, Jing, Nan, Cewen, Duan, Wenhui, Bellaiche, Laurent, Zhu, Yimei, and Zhu, Jing. Interface reconstruction with emerging charge ordering in hexagonal manganite. United States: N. p., 2018. Web. doi:10.1126/sciadv.aar4298.
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Cheng, Shaobo, Xu, Changsong, Deng, Shiqing, Han, Myung-Geun, Bao, Shanyong, Ma, Jing, Nan, Cewen, Duan, Wenhui, Bellaiche, Laurent, Zhu, Yimei, & Zhu, Jing. Interface reconstruction with emerging charge ordering in hexagonal manganite. United States. https://doi.org/10.1126/sciadv.aar4298
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Cheng, Shaobo, Xu, Changsong, Deng, Shiqing, Han, Myung-Geun, Bao, Shanyong, Ma, Jing, Nan, Cewen, Duan, Wenhui, Bellaiche, Laurent, Zhu, Yimei, and Zhu, Jing. Fri . "Interface reconstruction with emerging charge ordering in hexagonal manganite". United States. https://doi.org/10.1126/sciadv.aar4298. https://www.osti.gov/servlets/purl/1462404.
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@article{osti_1462404,
title = {Interface reconstruction with emerging charge ordering in hexagonal manganite},
author = {Cheng, Shaobo and Xu, Changsong and Deng, Shiqing and Han, Myung-Geun and Bao, Shanyong and Ma, Jing and Nan, Cewen and Duan, Wenhui and Bellaiche, Laurent and Zhu, Yimei and Zhu, Jing},
abstractNote = {Multiferroic materials, which simultaneously have multiple orderings, hold promise for use in the next generation of memory devices. We report a novel self-assembled MnO double layer forming at the interface between a multiferroic YMnO3 film and a c-Al2O3 substrate. The crystal structures and the valence states of this MnO double layer were studied by atomically resolved scanning transmission electron microscopy and spectroscopy, as well as density functional theory (DFT) calculations. A new type of charge ordering has been identified within this MnO layer, which also contributes to a polarization along the [001] direction. DFT calculations further establish the occurrence of multiple couplings between charge and lattice in this novel double layer, in addition to the polarization in nearby YMnO3 single layer. The interface reconstruction reported here creates a new playground for emergent physics, such as giant ferroelectricity and strong magnetoelectric coupling, in manganite systems.},
doi = {10.1126/sciadv.aar4298},
journal = {Science Advances},
number = 5,
volume = 4,
place = {United States},
year = {2018},
month = {5}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1126/sciadv.aar4298
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Cited by: 4 works
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Figures / Tables:

Fig. 1 Fig. 1: (S)TEM images showing the interface between the YMnO3 film and sapphire substrate. (A) Low magnification bright field TEM image for YMnO3 film. (B) HAADF image showing the interface between YMnO3 film and Al2O3 substrate from zone axis. The atomic model of YMnO3 at zone axis is embedded. Ymore » ions are in green, Mn ions are in purple, O ions are in red. The reconstructed interfacial layer is highlighted in red dashed rectangle. (C) Integrated intensity profile from top to bottom in the blue rectangle area in (B). The interfacial Y-Mn-Mn layer is shown between two red vertical lines. (D) HAADF image for the interface taken at zone axis. (E) The corresponding integrated intensity profile from blue rectangle area in (D).« less
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    Works referencing / citing this record:

    Revealing the Effects of Trace Oxygen Vacancies on Improper Ferroelectric Manganite with In Situ Biasing
    journal, January 2019

    • Cheng, Shaobo; Meng, Qingping; Han, Myung‐Geun
    • Advanced Electronic Materials, Vol. 5, Issue 4
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    Broadband photodetection of 2D Bi2O2Se–MoSe2 heterostructure
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    Magnetic and electrical properties of LuFe 2 O 4 epitaxial thin films with a self-assembled interface structure
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    • Kim, You Jin; Konishi, Shinya; Hayasaka, Yuichiro
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    Thermodynamics and multiferroicity in PbTiO 3 due to 4/5 d electrons doping
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    • Nazir, S.; Tariq, A.
    • Journal of Applied Physics, Vol. 125, Issue 9
    • DOI: 10.1063/1.5049848
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      Figures / Tables found in this record:

      Fig. 1 (p. 13)figure
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      Fig. 3 (p. 15)figure
      Fig. 4 (p. 16)figure
      Figure-5 (p. 17)figure
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