Atomic-scale evolution of local electronic structure across multiferroic domain walls

Ya Ping Chiu; Yu Ting Chen; Bo Chao Huang; Min Chuan Shih; Jan Chi Yang; Qing He; Chen Wei Liang; Jan Seidel; Yi Chun Chen; Ramamoorthy Ramesh; Ying Hao Chu

doi:10.1002/adma.201004143

Atomic-scale evolution of local electronic structure across multiferroic domain walls

Ya Ping Chiu^*, Yu Ting Chen, Bo Chao Huang, Min Chuan Shih, Jan Chi Yang, Qing He, Chen Wei Liang, Jan Seidel, Yi Chun Chen, Ramamoorthy Ramesh, Ying Hao Chu

^*Corresponding author for this work

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

89 Citations (Scopus)

Abstract

Direct evidence of the electronic configurations across domain walls in BiFeO₃ is quantitatively characterized by cross-sectional scanning tunneling microscopy. Atomic-scale band evolution and the asymmetrically built-in potential barrier at domain boundaries are demonstrated. The 109° domain walls register a remarkable decrease in the bandgap, suggesting a new route to control the local conducting channels within 2 nm.

Original language	English
Pages (from-to)	1530-1534
Number of pages	5
Journal	Advanced Materials
Volume	23
Issue number	13
DOIs	https://doi.org/10.1002/adma.201004143
Publication status	Published - 2011 Apr 5
Externally published	Yes

Keywords

BiFeO
domain walls
electronic structure
polarization discontinuity
scanning tunneling microscopy (STM)

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.201004143

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title = "Atomic-scale evolution of local electronic structure across multiferroic domain walls",

abstract = "Direct evidence of the electronic configurations across domain walls in BiFeO3 is quantitatively characterized by cross-sectional scanning tunneling microscopy. Atomic-scale band evolution and the asymmetrically built-in potential barrier at domain boundaries are demonstrated. The 109° domain walls register a remarkable decrease in the bandgap, suggesting a new route to control the local conducting channels within 2 nm.",

keywords = "BiFeO, domain walls, electronic structure, polarization discontinuity, scanning tunneling microscopy (STM)",

author = "Chiu, {Ya Ping} and Chen, {Yu Ting} and Huang, {Bo Chao} and Shih, {Min Chuan} and Yang, {Jan Chi} and Qing He and Liang, {Chen Wei} and Jan Seidel and Chen, {Yi Chun} and Ramamoorthy Ramesh and Chu, {Ying Hao}",

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doi = "10.1002/adma.201004143",

language = "English",

volume = "23",

pages = "1530--1534",

journal = "Advanced Materials",

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AU - Chiu, Ya Ping

AU - Chen, Yu Ting

AU - Huang, Bo Chao

AU - Shih, Min Chuan

AU - Yang, Jan Chi

AU - He, Qing

AU - Liang, Chen Wei

AU - Seidel, Jan

AU - Chen, Yi Chun

AU - Ramesh, Ramamoorthy

AU - Chu, Ying Hao

PY - 2011/4/5

Y1 - 2011/4/5

N2 - Direct evidence of the electronic configurations across domain walls in BiFeO3 is quantitatively characterized by cross-sectional scanning tunneling microscopy. Atomic-scale band evolution and the asymmetrically built-in potential barrier at domain boundaries are demonstrated. The 109° domain walls register a remarkable decrease in the bandgap, suggesting a new route to control the local conducting channels within 2 nm.

AB - Direct evidence of the electronic configurations across domain walls in BiFeO3 is quantitatively characterized by cross-sectional scanning tunneling microscopy. Atomic-scale band evolution and the asymmetrically built-in potential barrier at domain boundaries are demonstrated. The 109° domain walls register a remarkable decrease in the bandgap, suggesting a new route to control the local conducting channels within 2 nm.

KW - BiFeO

KW - domain walls

KW - electronic structure

KW - polarization discontinuity

KW - scanning tunneling microscopy (STM)

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DO - 10.1002/adma.201004143

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SP - 1530

EP - 1534

JO - Advanced Materials

JF - Advanced Materials

IS - 13

ER -

Atomic-scale evolution of local electronic structure across multiferroic domain walls

Abstract

Keywords

ASJC Scopus subject areas

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