Thermal Conductivity: Glass‐Like Through‐Plane Thermal Conductivity Induced by Oxygen Vacancies in Nanoscale Epitaxial La0.5Sr0.5CoO3−δ (Adv. Funct. Mater. 47/2017). (13th December 2017)

• Record Type: Journal Article
• Authors: Wu, Xuewang; Walter, Jeff; Feng, Tianli; Zhu, Jie; Zheng, Hong; Mitchell, John F.; Biškup, Neven; Varela, Maria; Ruan, Xiulin; Leighton, Chris; Wang, Xiaojia
• Is Part Of: Advanced functional materials. Volume 27:Number 47(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-12-13
• Subjects: nanoscale epitaxial LSCO -- oxygen vacancies -- perovskite -- thermal conductivity -- time‐domain thermoreflectance; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.201770284
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract : In article1704233, Xiaojia Wang and co‐workers demonstrate that single crystal La0.5 Sr0.5 CoO3− 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.