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Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites

Incorporation of the secondary oxide phase into the manganite composite capable of enhancing low-field magnetoresistance (LFMR) for viability in high-performance spintronic applications. Polycrystalline La0.67Ca0.33MnO3 (LCMO) was prepared via the sol–gel route in this study. The structural, microst...

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Main Authors: Lau, Lik Nguong, Lim, Kean Pah, Chok, See Yee, Ishak, Amirah Natasha, Hon, Xiao Tong, Wong, Yan Jing, Awang Kechik, Mohd Mustafa, Chen, Soo Kien, Ibrahim, Noor Baa’yah, Miryala, Muralidhar, Murakami, Masato, Shaari, Abdul Halim
Format: Article
Language:English
Published: Multidisciplinary Digital Publishing Institute 2021
Online Access:http://psasir.upm.edu.my/id/eprint/96921/1/ABSTRACT.pdf
http://psasir.upm.edu.my/id/eprint/96921/
https://www.mdpi.com/2079-6412/11/7/835
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spelling my.upm.eprints.969212022-11-29T09:06:13Z http://psasir.upm.edu.my/id/eprint/96921/ Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites Lau, Lik Nguong Lim, Kean Pah Chok, See Yee Ishak, Amirah Natasha Hon, Xiao Tong Wong, Yan Jing Awang Kechik, Mohd Mustafa Chen, Soo Kien Ibrahim, Noor Baa’yah Miryala, Muralidhar Murakami, Masato Shaari, Abdul Halim Incorporation of the secondary oxide phase into the manganite composite capable of enhancing low-field magnetoresistance (LFMR) for viability in high-performance spintronic applications. Polycrystalline La0.67Ca0.33MnO3 (LCMO) was prepared via the sol–gel route in this study. The structural, microstructural, magnetic, electrical, and magneto-transport properties of (1−x) LCMO: x NiO, x = 0.00, 0.05, 0.10, 0.15 and 0.20 were investigated in detail. The X-ray diffraction (XRD) patterns showed the coexistence of LCMO and NiO in the composites. The microstructural analysis indicated the amount of NiO nanoparticles segregated at the grain boundaries or on the surface of LCMO grains increased with the increasing secondary phase content. LCMO and NiO still retained their individual magnetic phase as observed from AC susceptibility (ACS) measurement. This further confirmed that there is no interfacial diffusion reaction between these two compounds. The NiO nanoparticle acted as a barrier to charge transport and caused an increase in resistivity for composite samples. The residual resistivity due to the grain/domain boundary is responsible for the scattering mechanism in the metallic region as suggested by the theoretical model fitting, ρ(T)=ρ0+ρ2T2+ρ4.5T4.5. The magnetoresistance values of LCMO and its composites were found to increase monotonically with the decrease in temperature. Hence, the LFMR was observed. Nonetheless, the slight reduction of LFMR in composites was attributed to the thick boundary layer created by NiO and impaired the spin polarised tunnelling process. Multidisciplinary Digital Publishing Institute 2021 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/96921/1/ABSTRACT.pdf Lau, Lik Nguong and Lim, Kean Pah and Chok, See Yee and Ishak, Amirah Natasha and Hon, Xiao Tong and Wong, Yan Jing and Awang Kechik, Mohd Mustafa and Chen, Soo Kien and Ibrahim, Noor Baa’yah and Miryala, Muralidhar and Murakami, Masato and Shaari, Abdul Halim (2021) Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites. Coatings, 11 (7). 835 - 849. ISSN 2079-6412 https://www.mdpi.com/2079-6412/11/7/835 10.3390/coatings11070835
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Incorporation of the secondary oxide phase into the manganite composite capable of enhancing low-field magnetoresistance (LFMR) for viability in high-performance spintronic applications. Polycrystalline La0.67Ca0.33MnO3 (LCMO) was prepared via the sol–gel route in this study. The structural, microstructural, magnetic, electrical, and magneto-transport properties of (1−x) LCMO: x NiO, x = 0.00, 0.05, 0.10, 0.15 and 0.20 were investigated in detail. The X-ray diffraction (XRD) patterns showed the coexistence of LCMO and NiO in the composites. The microstructural analysis indicated the amount of NiO nanoparticles segregated at the grain boundaries or on the surface of LCMO grains increased with the increasing secondary phase content. LCMO and NiO still retained their individual magnetic phase as observed from AC susceptibility (ACS) measurement. This further confirmed that there is no interfacial diffusion reaction between these two compounds. The NiO nanoparticle acted as a barrier to charge transport and caused an increase in resistivity for composite samples. The residual resistivity due to the grain/domain boundary is responsible for the scattering mechanism in the metallic region as suggested by the theoretical model fitting, ρ(T)=ρ0+ρ2T2+ρ4.5T4.5. The magnetoresistance values of LCMO and its composites were found to increase monotonically with the decrease in temperature. Hence, the LFMR was observed. Nonetheless, the slight reduction of LFMR in composites was attributed to the thick boundary layer created by NiO and impaired the spin polarised tunnelling process.
format Article
author Lau, Lik Nguong
Lim, Kean Pah
Chok, See Yee
Ishak, Amirah Natasha
Hon, Xiao Tong
Wong, Yan Jing
Awang Kechik, Mohd Mustafa
Chen, Soo Kien
Ibrahim, Noor Baa’yah
Miryala, Muralidhar
Murakami, Masato
Shaari, Abdul Halim
spellingShingle Lau, Lik Nguong
Lim, Kean Pah
Chok, See Yee
Ishak, Amirah Natasha
Hon, Xiao Tong
Wong, Yan Jing
Awang Kechik, Mohd Mustafa
Chen, Soo Kien
Ibrahim, Noor Baa’yah
Miryala, Muralidhar
Murakami, Masato
Shaari, Abdul Halim
Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites
author_facet Lau, Lik Nguong
Lim, Kean Pah
Chok, See Yee
Ishak, Amirah Natasha
Hon, Xiao Tong
Wong, Yan Jing
Awang Kechik, Mohd Mustafa
Chen, Soo Kien
Ibrahim, Noor Baa’yah
Miryala, Muralidhar
Murakami, Masato
Shaari, Abdul Halim
author_sort Lau, Lik Nguong
title Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites
title_short Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites
title_full Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites
title_fullStr Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites
title_full_unstemmed Effect of NiO nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of La0.67Ca0.33MnO3 nanocomposites
title_sort effect of nio nanoparticle addition on the structural, microstructural, magnetic, electrical, and magneto-transport properties of la0.67ca0.33mno3 nanocomposites
publisher Multidisciplinary Digital Publishing Institute
publishDate 2021
url http://psasir.upm.edu.my/id/eprint/96921/1/ABSTRACT.pdf
http://psasir.upm.edu.my/id/eprint/96921/
https://www.mdpi.com/2079-6412/11/7/835
_version_ 1751538269590388736
score 13.211869

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