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Thermal Conductivity: Glass‐Like Through‐Plane Thermal Conductivity Induced by Oxygen Vacancies in Nanoscale Epitaxial La 0.5 Sr 0.5 CoO 3− δ (Adv. Funct. Mater. 47/2017)
Author(s) -
Wu Xuewang,
Walter Jeff,
Feng Tianli,
Zhu Jie,
Zheng Hong,
Mitchell John F.,
Biškup Neven,
Varela Maria,
Ruan Xiulin,
Leighton Chris,
Wang Xiaojia
Publication year - 2017
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201770284
Subject(s) - materials science , thermal conductivity , nanoscopic scale , perovskite (structure) , oxygen , condensed matter physics , conductivity , phonon , crystal (programming language) , nanotechnology , crystallography , chemistry , composite material , physics , organic chemistry , computer science , programming language
In article 1704233 , Xiaojia Wang and co‐workers demonstrate that single crystal La 0.5 Sr 0.5 CoO 3− δ films possess a glass‐like thermal conductivity through their plane. A combination of oxygen vacancies, Sr distribution, size effect, and weak electron/phonon coupling causes this effect. This discovery opens possibilities for tuning the thermal properties of perovskite thin films by manipulating heat carriers via structural/defect engineering at the atomic level.