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Topotactic Phase Transformation of the Brownmillerite SrCoO2.5 to the Perovskite SrCoO3–δ

2013/07/12 by Hyoungjeen Jeen, Woo Seok Choi, John W. Freeland +5 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Thermoelectric Materials and Devices #Electronic and Structural Properties of Oxides #Magnetic and transport properties of perovskites and related materials #cond-mat.mtrl-sci

paper · pdf · doi:10.1002/adma.201300531

published as Adv. Mater. 2013, 25, 3651-3656

openalex publication_date 2013/07/12 · arxiv created 2013/07/15 · arxiv updated 2013/07/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29

Abstract

Pulsed laser epitaxy of brownmillerite SrCoO2.5 thin films and their phase transformation to the perovskite SrCoO3-δ are investigated. While the direct growth of the fully oxidized perovskite films is found to be an arduous task, filling some of oxygen vacancies into SrCoO2.5 by topotactic oxidation accompanies systematic evolution of electronic, magnetic, and thermoelectric properties, useful for many information and energy technologies.

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