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Electrical-current-induced Magnetic Hysteresis In Self-assembled Vertically Aligned La2/3sr1/3mno3

Title: Electrical-current-induced Magnetic Hysteresis In Self-assembled Vertically Aligned La2/3sr1/3mno3: zno Nanopillar Composites.
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Name(s): Pan, W., author
Lu, P., author
Ihlefeld, J. F., author
Lee, S. R., author
Choi, E. S., author
Jiang, Y., author
Jia, Q. X., author
Type of Resource: text
Genre: Journal Article
Text
Journal Article
Date Issued: 2018-02-22
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Magnetoresistive random-access memory (MRAM) is poised to become a next-generation information storage device. Yet, many materials challenges remain unsolved before it can become a widely used memory storage solution. Among them, an urgent need is to identify a material system that is suitable for downscaling and is compatible with low-power logic applications. Self-assembled, vertically aligned La2/3Sr1/3MnO3 : ZnO nanocomposites, in which La2/3Sr1/3MnO3 (LSMO) matrix and ZnO nanopillars form an intertwined structure with coincident-site-matched growth occurring between the LSMO and ZnO vertical interfaces, may offer new MRAM applications by combining their superior electric, magnetic (B), and optical properties. In this Rapid Communication, we show the results of electrical current induced magnetic hysteresis in magnetoresistance measurements in these nanopillar composites. We observe that when the current level is low, for example, 1 mu A, the magnetoresistance displays a linear, negative, nonhysteretic B field dependence. Surprisingly, when a large current is used, I > 10 mu A, a hysteretic behavior is observed when the B field is swept in the up and down directions. This hysteresis weakens as the sample temperature is increased. A possible spin-valve mechanism related to this electrical current induced magnetic hysteresis is proposed and discussed.
Identifier: FSU_libsubv1_wos_000425741700001 (IID), 10.1103/PhysRevMaterials.2.021401 (DOI)
Keywords: growth, memory
Publication Note: The publisher's version of record is available at https://doi.org/10.1103/PhysRevMaterials.2.021401
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000425741700001
Host Institution: FSU
Is Part Of: Physical Review Materials.
2475-9953
Issue: iss. 2, vol. 2

Choose the citation style.
Pan, W., Lu, P., Ihlefeld, J. F., Lee, S. R., Choi, E. S., Jiang, Y., & Jia, Q. X. (2018). Electrical-current-induced Magnetic Hysteresis In Self-assembled Vertically Aligned La2/3sr1/3mno3: zno Nanopillar Composites. Physical Review Materials. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000425741700001