Enhanced magnetoresistance and electroresistance at high temperature in a nano-matrix manganite
Magnetoresistance (MR) is highly exploitable to future spintronics devices, such as random-access memory, magnetic sensors, and spin-based neuromorphic electronics. Conventionally the enhanced MR in manganite always companies a sacrifice of Curie temperature, which limits its widespread application potential. Here we report a high-temperature survived MR in a LaSrMnO (LSMO) film grown on a piezoelectric substrate. The lattice mismatch between the film and substrate creates a self-assembled nano-matrix with two types of nanoscale matrices, namely - and -orientated LSMO magnetic domains. In this structure, the MR can reach -67% at even 350 K. Furthermore, the resistance of LSMO is electric-field-tunable to multiple resistance states by electrically modulating the biaxial strain imposed by the underlying piezoelectric substrate, an additional ∼14.2% electroresistance (ER) can be obtained. The achievements of high-temperature substantial MR and its electrical tunability in the nano-matrix manganite are of use to future multi-state memory devices in both spintronics and straintronics.
National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China;
|WOS Research Area|
Materials Science ; Metallurgy & Metallurgical Engineering
Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
|WOS Accession No|
|EI Accession Number|
Electric resistance ; Lanthanum compounds ; Lattice mismatch ; Magnetic domains ; Magnetic storage ; Magnetoresistance ; Nanomagnetics ; Piezoelectricity ; Random access storage ; Strontium compounds ; Substrates ; Textures
|ESI Classification Code|
Electricity: Basic Concepts and Phenomena:701.1 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Data Storage, Equipment and Techniques:722.1 ; Inorganic Compounds:804.2 ; Crystal Lattice:933.1.1
|ESI Research Field|
Cited Times [WOS]:2
|Document Type||Journal Article|
|Department||Department of Materials Science and Engineering|
1.Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education,Jilin Normal University,Changchun,130103,China
2.Functional Materials and Acousto-Optic Instruments Institute,School of Instrumentation Science and Engineering,School of Instrumentation Science and Engineering,Harbin Institute of Technology,Harbin,150080,China
3.School of Physical and Mathematical Sciences,Nanyang Technological University,Singapore,639371,Singapore
4.Department of Materials Science and Engineering,Southern University of Science and Technology,Guangdong,518055,China
5.Raffles Institution,Singapore,1 Raffles Institution Lane,575954,Singapore
Xu，Hang,Huang，Ke,Li，Changjian,et al. Enhanced magnetoresistance and electroresistance at high temperature in a nano-matrix manganite[J]. ACTA MATERIALIA,2022,238.
Xu，Hang.,Huang，Ke.,Li，Changjian.,Qi，Ji.,Li，Jiaming.,...&Lü，Weiming.(2022).Enhanced magnetoresistance and electroresistance at high temperature in a nano-matrix manganite.ACTA MATERIALIA,238.
Xu，Hang,et al."Enhanced magnetoresistance and electroresistance at high temperature in a nano-matrix manganite".ACTA MATERIALIA 238(2022).
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