Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlattices

Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlattices

Interfacial magnetism at transition-metal oxide interfaces is of tremendous interest. The emergence of ferromagnetism and a matrix-dependent charge transfer between Co and Mn ions in the interdiffusion region of compressively strained LaMnO3–LaCoO3 superlattices (SLs) were studied. The SLs exhibit c...

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Main Authors: Liang Wu, Mingfeng Chen, Changjian Li, Jun Zhou, Lei Shen, Yujia Wang, Zhicheng Zhong, Ming Feng, Yujun Zhang, Kun Han, T. Venky Venkatesan, Stephen J. Pennycook, Pu Yu, Jing Ma, X. Renshaw Wang, Ce-Wen Nan
Format: Article
Language:English
Published: Taylor & Francis Group 2018-09-01
Series:Materials Research Letters
Subjects:
Superlattice
ferromagnetism
interdiffusion
charge transfer
Online Access:http://dx.doi.org/10.1080/21663831.2018.1482840
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spelling doaj-4876185ade12419b9d5b34c04a4d2e372020-11-25T01:44:57ZengTaylor & Francis GroupMaterials Research Letters2166-38312018-09-016950150710.1080/21663831.2018.14828401482840Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlatticesLiang Wu0Mingfeng Chen1Changjian Li2Jun Zhou3Lei Shen4Yujia Wang5Zhicheng Zhong6Ming Feng7Yujun Zhang8Kun Han9T. Venky Venkatesan10Stephen J. Pennycook11Pu Yu12Jing Ma13X. Renshaw Wang14Ce-Wen Nan15School of Materials Science and Engineering, Tsinghua UniversitySchool of Materials Science and Engineering, Tsinghua UniversityNational University of SingaporeNational University of SingaporeNational University of SingaporeTsinghua UniversityKey Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesJilin Normal UniversitySchool of Materials Science and Engineering, Tsinghua UniversityNanyang Technological UniversityNational University of SingaporeNational University of SingaporeTsinghua UniversitySchool of Materials Science and Engineering, Tsinghua UniversityNanyang Technological UniversitySchool of Materials Science and Engineering, Tsinghua UniversityInterfacial magnetism at transition-metal oxide interfaces is of tremendous interest. The emergence of ferromagnetism and a matrix-dependent charge transfer between Co and Mn ions in the interdiffusion region of compressively strained LaMnO3–LaCoO3 superlattices (SLs) were studied. The SLs exhibit considerable ferromagnetism, which is negligible in both constituents. This is explained by the matrix-dependent charge transfer between Co and Mn ions. That is, the valence state of diffused Co ions into LaMnO3 shifts from 3+ to 2+ by adopting one electron from Mn3+, inducing the same amount of Mn4+, while the Mn ions that diffuses into LaCoO3 remains Mn3+.http://dx.doi.org/10.1080/21663831.2018.1482840Superlatticeferromagnetisminterdiffusioncharge transfer
collection DOAJ
language English
format Article
sources DOAJ
author Liang Wu
Mingfeng Chen
Changjian Li
Jun Zhou
Lei Shen
Yujia Wang
Zhicheng Zhong
Ming Feng
Yujun Zhang
Kun Han
T. Venky Venkatesan
Stephen J. Pennycook
Pu Yu
Jing Ma
X. Renshaw Wang
Ce-Wen Nan
spellingShingle Liang Wu
Mingfeng Chen
Changjian Li
Jun Zhou
Lei Shen
Yujia Wang
Zhicheng Zhong
Ming Feng
Yujun Zhang
Kun Han
T. Venky Venkatesan
Stephen J. Pennycook
Pu Yu
Jing Ma
X. Renshaw Wang
Ce-Wen Nan
Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlattices
Materials Research Letters
Superlattice
ferromagnetism
interdiffusion
charge transfer
author_facet Liang Wu
Mingfeng Chen
Changjian Li
Jun Zhou
Lei Shen
Yujia Wang
Zhicheng Zhong
Ming Feng
Yujun Zhang
Kun Han
T. Venky Venkatesan
Stephen J. Pennycook
Pu Yu
Jing Ma
X. Renshaw Wang
Ce-Wen Nan
author_sort Liang Wu
title Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlattices
title_short Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlattices
title_full Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlattices
title_fullStr Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlattices
title_full_unstemmed Ferromagnetism and matrix-dependent charge transfer in strained LaMnO3–LaCoO3 superlattices
title_sort ferromagnetism and matrix-dependent charge transfer in strained lamno3–lacoo3 superlattices
publisher Taylor & Francis Group
series Materials Research Letters
issn 2166-3831
publishDate 2018-09-01
description Interfacial magnetism at transition-metal oxide interfaces is of tremendous interest. The emergence of ferromagnetism and a matrix-dependent charge transfer between Co and Mn ions in the interdiffusion region of compressively strained LaMnO3–LaCoO3 superlattices (SLs) were studied. The SLs exhibit considerable ferromagnetism, which is negligible in both constituents. This is explained by the matrix-dependent charge transfer between Co and Mn ions. That is, the valence state of diffused Co ions into LaMnO3 shifts from 3+ to 2+ by adopting one electron from Mn3+, inducing the same amount of Mn4+, while the Mn ions that diffuses into LaCoO3 remains Mn3+.
topic Superlattice
ferromagnetism
interdiffusion
charge transfer
url http://dx.doi.org/10.1080/21663831.2018.1482840
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