Electron-beam-induced Perovskite-Brownmillerite-Perovskite structural phase transitions in epitaxial La2/3Sr1/3MnO3 films

Lide Yao; Sayani Majumdar; Laura Äkäslompolo; Sampo Inkinen; Qi Hang Qin; Sebastiaan van Dijken

doi:10.1002/adma.201305656

Electron-beam-induced Perovskite-Brownmillerite-Perovskite structural phase transitions in epitaxial La2/3Sr1/3MnO3 films

Adv Mater. 2014 May;26(18):2789-93. doi: 10.1002/adma.201305656. Epub 2014 Feb 19.

Authors

Lide Yao¹, Sayani Majumdar, Laura Äkäslompolo, Sampo Inkinen, Qi Hang Qin, Sebastiaan van Dijken

Affiliation

¹ NanoSpin, Department of Applied Physics, Aalto University School of Science, P.O. Box, 15100, FI-00076, Aalto, Finland.

PMID: 24554587
DOI: 10.1002/adma.201305656

Abstract

Structural phase transitions driven by oxygen-vacancy ordering can drastically affect the properties of transition metal oxides. The focused electron beam of a transmission electron microscope (TEM) can be used to control structural phase transitions in epitaxial La2/3Sr1/3MnO3. The ability to induce and characterize oxygen-deficient structural phases simultaneously in a continuous and controllable manner opens up new pathways for atomic-scale studies of transition metal oxides and other complex materials.

Keywords: brownmillerite structure; electron-beam irradiation; high-resolution transmission electron microscopy (HRTEM); oxygen vacancy ordering; transition metal oxides.

Publication types

Research Support, Non-U.S. Gov't