Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3
Abstract The ultra-thin heterostructure of Pr0.6Sr0.4MnO3(15 nm)/Pr0.5Ca0.5MnO3(15 nm)/SrTiO3 fabricated using pulsed laser deposition technique exhibits the phase-segregated nature wherein the ferromagnetism of Pr0.6Sr0.4MnO3, and the antiferromagnetic state of Pr0.5Ca0.5MnO3 coexist in proximity....
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-28314-8 |
| _version_ | 1811165909768732672 |
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| author | V. Gayathri E. P. Amaladass A. T. Sathyanarayana T. Geetha Kumary R. Pandian Pooja Gupta Sanjay K. Rai Awadhesh Mani |
| author_facet | V. Gayathri E. P. Amaladass A. T. Sathyanarayana T. Geetha Kumary R. Pandian Pooja Gupta Sanjay K. Rai Awadhesh Mani |
| author_sort | V. Gayathri |
| collection | DOAJ |
| description | Abstract The ultra-thin heterostructure of Pr0.6Sr0.4MnO3(15 nm)/Pr0.5Ca0.5MnO3(15 nm)/SrTiO3 fabricated using pulsed laser deposition technique exhibits the phase-segregated nature wherein the ferromagnetism of Pr0.6Sr0.4MnO3, and the antiferromagnetic state of Pr0.5Ca0.5MnO3 coexist in proximity. The observation of two exciting phenomena in the grown ultra-thin heterostructure, namely, the kinetic arrest and training effect, confirms its phase-segregated nature. The melting of the antiferromagnetic state in Pr0.5Ca0.5MnO3 into a ferromagnetic state due to the interfacial interaction arising from the magnetic proximity of the ferromagnetic clusters of Pr0.6Sr0.4MnO3 have been observed. A metal–insulator transition (TMIT) found at 215 K, close to its Curie temperature (TCurie) observed at 230 K, reveals a strong correlation between the electrical transport and the magnetization of the ultra-thin heterostructure. The electrical conduction in the high-temperature regime is explained in terms of the adiabatic small polaron hopping model. While the resistance in the metallic regime for temperatures above 100 K is contributed by the inelastic scattering due to the two-magnons, in the metallic regime below 100 K, the one-magnon inelastic scattering contribution is prevalent. An enhanced colossal magnetoresistance property near room temperature is obtained in the ultra-thin heterostructure arising from the proximity-driven interfacial interaction, making it a suitable candidate for technological applications near room temperature. |
| first_indexed | 2024-04-10T15:43:51Z |
| format | Article |
| id | doaj.art-1a87268186bc40c49931c11218733a1c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-10T15:43:51Z |
| publishDate | 2023-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-1a87268186bc40c49931c11218733a1c2023-02-12T12:12:18ZengNature PortfolioScientific Reports2045-23222023-02-0113111310.1038/s41598-023-28314-8Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3V. Gayathri0E. P. Amaladass1A. T. Sathyanarayana2T. Geetha Kumary3R. Pandian4Pooja Gupta5Sanjay K. Rai6Awadhesh Mani7Materials Science Group, Indira Gandhi Centre for Atomic ResearchMaterials Science Group, Indira Gandhi Centre for Atomic ResearchMaterials Science Group, Indira Gandhi Centre for Atomic ResearchMaterials Science Group, Indira Gandhi Centre for Atomic ResearchMaterials Science Group, Indira Gandhi Centre for Atomic ResearchHomi Bhabha National InstituteAccelerator Physics and Synchrotrons Utilisation Division, Raja Ramanna Centre for Advanced TechnologyMaterials Science Group, Indira Gandhi Centre for Atomic ResearchAbstract The ultra-thin heterostructure of Pr0.6Sr0.4MnO3(15 nm)/Pr0.5Ca0.5MnO3(15 nm)/SrTiO3 fabricated using pulsed laser deposition technique exhibits the phase-segregated nature wherein the ferromagnetism of Pr0.6Sr0.4MnO3, and the antiferromagnetic state of Pr0.5Ca0.5MnO3 coexist in proximity. The observation of two exciting phenomena in the grown ultra-thin heterostructure, namely, the kinetic arrest and training effect, confirms its phase-segregated nature. The melting of the antiferromagnetic state in Pr0.5Ca0.5MnO3 into a ferromagnetic state due to the interfacial interaction arising from the magnetic proximity of the ferromagnetic clusters of Pr0.6Sr0.4MnO3 have been observed. A metal–insulator transition (TMIT) found at 215 K, close to its Curie temperature (TCurie) observed at 230 K, reveals a strong correlation between the electrical transport and the magnetization of the ultra-thin heterostructure. The electrical conduction in the high-temperature regime is explained in terms of the adiabatic small polaron hopping model. While the resistance in the metallic regime for temperatures above 100 K is contributed by the inelastic scattering due to the two-magnons, in the metallic regime below 100 K, the one-magnon inelastic scattering contribution is prevalent. An enhanced colossal magnetoresistance property near room temperature is obtained in the ultra-thin heterostructure arising from the proximity-driven interfacial interaction, making it a suitable candidate for technological applications near room temperature.https://doi.org/10.1038/s41598-023-28314-8 |
| spellingShingle | V. Gayathri E. P. Amaladass A. T. Sathyanarayana T. Geetha Kumary R. Pandian Pooja Gupta Sanjay K. Rai Awadhesh Mani Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3 Scientific Reports |
| title | Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3 |
| title_full | Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3 |
| title_fullStr | Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3 |
| title_full_unstemmed | Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3 |
| title_short | Interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra-thin heterostructure of Pr0.6Sr0.4MnO3 in proximity with Pr0.5Ca0.5MnO3 |
| title_sort | interfacial interaction driven enhancement in the colossal magnetoresistance property of ultra thin heterostructure of pr0 6sr0 4mno3 in proximity with pr0 5ca0 5mno3 |
| url | https://doi.org/10.1038/s41598-023-28314-8 |
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