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Статья

Resurrected and Tunable Conductivity and Ferromagnetism in the Secondary Growth La<sub>0.7</sub>Ca<sub>0.3</sub>MnO<sub>3</sub> on Transferred SrTiO<sub>3</sub> Membranes

Jinrui GuoSpintronics Institute, School of Physics and Technology, University of Jinan, Jinan 250022, ChinaBin HeSpintronics Institute, School of Physics and Technology, University of Jinan, Jinan 250022, ChinaYue HanCountry Functional Materials and Acousto-Optic Instruments Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, ChinaHuan LiuCountry Functional Materials and Acousto-Optic Instruments Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, ChinaJiale HanSpintronics Institute, School of Physics and Technology, University of Jinan, Jinan 250022, ChinaXiaoqiao MaSpintronics Institute, School of Physics and Technology, University of Jinan, Jinan 250022, ChinaJiaqing WangSpintronics Institute, School of Physics and Technology, University of Jinan, Jinan 250022, ChinaWenqi GaoSpintronics Institute, School of Physics and Technology, University of Jinan, Jinan 250022, ChinaWeiming LüCountry Functional Materials and Acousto-Optic Instruments Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
2024en
ABI

Аннотация

To avoid the epitaxy dilemma in various thin films, such as complex oxide, silicon, organic, metal/alloy, etc., their stacking at an atomic level and secondary growth are highly desired to maximize the functionality of a promising electronic device. The ceramic nature of complex oxides and the demand for accurate and long-range-ordered stoichiometry face severe challenges. Here, the transport and magnetic properties of the La0.7Ca0.3MnO3 (LCMO) secondary growth on single-crystal freestanding SrTiO3 (STO) membranes are demonstrated. It has been experimentally found that on an only 10 nm thick STO membrane, the LCMO can offer a bulk-like Curie temperature (TC) of 253 K and negative magnetoresistance of −64%, with a weak dependence on the thickness. The resurrected conductivity and ferromagnetism in LCMO confirm the advantages of secondary growth, which benefits from the excellent flexibility and transferability. Additionally, this study explores the integration strategy of complex oxides with other functional materials.

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DOI
10.1021/acs.nanolett.3c03651

Цитирования и источники

Цитирований: 2Использованных источников: 0
Показатели — AkademScholar