Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite
. Colossal magnetoresistive (CMR) materials have been widely studied because of their huge potential in spintronic technology. An introduction of secondary phase to the manganite matrix is able to improve the low field magnetoresistance (LFMR). This method is favoured by recent research works as...
| Main Authors: | , , , , |
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| Format: | Article |
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Scientific.Net
2020
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| author | Lau, Lik Nguong Lim, Kean Pah Awang Kechik, Mohd Mustafa Chen, Soo Kien Ibrahim, Noor Baayah |
| author_facet | Lau, Lik Nguong Lim, Kean Pah Awang Kechik, Mohd Mustafa Chen, Soo Kien Ibrahim, Noor Baayah |
| author_sort | Lau, Lik Nguong |
| collection | UPM |
| description | . Colossal magnetoresistive (CMR) materials have been widely studied because of their huge
potential in spintronic technology. An introduction of secondary phase to the manganite matrix is
able to improve the low field magnetoresistance (LFMR). This method is favoured by recent research
works as it requires a lower magnetic field compared to intrinsic magnetoresistance. Structural,
magnetic properties and magnetotransport properties of polycrystalline (1-x) La0.67Ca0.33MnO3
(LCMO): x TiO2 composites where x = 0.00, 0.05, 0.10, 0.15 and 0.20 were investigated in this work.
Polycrystalline La0.67Ca0.33MnO3 (LCMO) was synthesized via sol-gel method and pre-sintered at
800 ºC before appending with nano-sized TiO2. All samples are in LCMO phase having an
orthorhombic structure with space group Pnma. The crystal structural parameter was studied by using
Rietveld refinement. As the TiO2 content increases, the magnetization is getting higher as observed
via vibrating sample magnetometer (VSM) analysis at room temperature. Magnetotransport
properties of the pure LCMO sample have been studied from 80 – 220 K. The LFMR is enhanced as
the temperature drops. The results have shown LCMO: TiO2 manganite composite is an excellent
candidate for future magnetic sensors and memory devices. |
| first_indexed | 2024-03-06T10:41:36Z |
| format | Article |
| id | upm.eprints-85947 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T10:41:36Z |
| publishDate | 2020 |
| publisher | Scientific.Net |
| record_format | dspace |
| spelling | upm.eprints-859472023-11-28T07:25:05Z http://psasir.upm.edu.my/id/eprint/85947/ Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite Lau, Lik Nguong Lim, Kean Pah Awang Kechik, Mohd Mustafa Chen, Soo Kien Ibrahim, Noor Baayah . Colossal magnetoresistive (CMR) materials have been widely studied because of their huge potential in spintronic technology. An introduction of secondary phase to the manganite matrix is able to improve the low field magnetoresistance (LFMR). This method is favoured by recent research works as it requires a lower magnetic field compared to intrinsic magnetoresistance. Structural, magnetic properties and magnetotransport properties of polycrystalline (1-x) La0.67Ca0.33MnO3 (LCMO): x TiO2 composites where x = 0.00, 0.05, 0.10, 0.15 and 0.20 were investigated in this work. Polycrystalline La0.67Ca0.33MnO3 (LCMO) was synthesized via sol-gel method and pre-sintered at 800 ºC before appending with nano-sized TiO2. All samples are in LCMO phase having an orthorhombic structure with space group Pnma. The crystal structural parameter was studied by using Rietveld refinement. As the TiO2 content increases, the magnetization is getting higher as observed via vibrating sample magnetometer (VSM) analysis at room temperature. Magnetotransport properties of the pure LCMO sample have been studied from 80 – 220 K. The LFMR is enhanced as the temperature drops. The results have shown LCMO: TiO2 manganite composite is an excellent candidate for future magnetic sensors and memory devices. Scientific.Net 2020 Article PeerReviewed Lau, Lik Nguong and Lim, Kean Pah and Awang Kechik, Mohd Mustafa and Chen, Soo Kien and Ibrahim, Noor Baayah (2020) Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite. Solid State Phenomena, 307. pp. 9-14. ISSN 1012-0394 https://www.scientific.net/SSP.307.9 10.4028/www.scientific.net/SSP.307.9 |
| spellingShingle | Lau, Lik Nguong Lim, Kean Pah Awang Kechik, Mohd Mustafa Chen, Soo Kien Ibrahim, Noor Baayah Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite |
| title | Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite |
| title_full | Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite |
| title_fullStr | Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite |
| title_full_unstemmed | Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite |
| title_short | Structural, magnetic and magnetotransport properties of sol-gel synthesized La0.67Ca0.33MnO3: TiO2 nanocomposite |
| title_sort | structural magnetic and magnetotransport properties of sol gel synthesized la0 67ca0 33mno3 tio2 nanocomposite |
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