Atomic‐Scale Evolution of Local Electronic Structure Across Multiferroic Domain Walls | Zendy

Chiu YaPing | Zendy; Chen YuTing | Zendy; Huang BoChao | Zendy; Shih MinChuan | Zendy; Yang JanChi | Zendy; He Qing | Zendy; Liang ChenWei | Zendy; Seidel Jan | Zendy; Chen YiChun | Zendy; Ramesh Ramamoorthy | Zendy; Chu YingHao | Zendy

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Atomic‐Scale Evolution of Local Electronic Structure Across Multiferroic Domain Walls

Author(s) -

Chiu YaPing,

Chen YuTing,

Huang BoChao,

Shih MinChuan,

Yang JanChi,

He Qing,

Liang ChenWei,

Seidel Jan,

Chen YiChun,

Ramesh Ramamoorthy,

Chu YingHao

Publication year - 2011

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201004143

Subject(s) - domain (mathematical analysis) , multiferroics , materials science , scale (ratio) , domain wall (magnetism) , scanning tunneling microscope , quantum tunnelling , atomic units , electronic structure , band gap , nanotechnology , crystallography , condensed matter physics , optoelectronics , physics , ferroelectricity , chemistry , quantum mechanics , mathematical analysis , mathematics , magnetization , magnetic field , dielectric

Direct evidence of the electronic configurations across domain walls in BiFeO 3 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.

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