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

Yao, Lide; Majumdar, Sayani; Äkäslompolo, Laura; Inkinen, Sampo; Qin, Qi Hang; van Dijken, Sebastiaan · Adv Mater · 2014

basic_science · Level V

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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.