Room Temperature Magnetic Memory Effect in Cluster-Glassy Fe-Doped NiO Nanoparticles
The Fe-doped NiO nanoparticles that were synthesized using a co-precipitation method are characterized by enhanced room-temperature ferromagnetic property evident from magnetic measurements. Neutron powder diffraction experiments suggested an increment of the magnetic moment of 3<i>d</i>...
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MDPI AG
2020-07-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/7/1318 |
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| author | Ashish Chhaganlal Gandhi Tai-Yue Li B. Vijaya Kumar P. Muralidhar Reddy Jen-Chih Peng Chun-Ming Wu Sheng Yun Wu |
| author_facet | Ashish Chhaganlal Gandhi Tai-Yue Li B. Vijaya Kumar P. Muralidhar Reddy Jen-Chih Peng Chun-Ming Wu Sheng Yun Wu |
| author_sort | Ashish Chhaganlal Gandhi |
| collection | DOAJ |
| description | The Fe-doped NiO nanoparticles that were synthesized using a co-precipitation method are characterized by enhanced room-temperature ferromagnetic property evident from magnetic measurements. Neutron powder diffraction experiments suggested an increment of the magnetic moment of 3<i>d</i> ions in the nanoparticles as a function of Fe-concentration. The temperature, time, and field-dependent magnetization measurements show that the effect of Fe-doping in NiO has enhanced the intraparticle interactions due to formed defect clusters. The intraparticle interactions are proposed to bring additional magnetic anisotropy energy barriers that affect the overall magnetic moment relaxation process and emerging as room temperature magnetic memory. The outcome of this study is attractive for the future development of the room temperature ferromagnetic oxide system to facilitate the integration of spintronic devices and understanding of their fundamental physics. |
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| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T18:40:57Z |
| publishDate | 2020-07-01 |
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| series | Nanomaterials |
| spelling | doaj.art-cf1a2ba419c14db2828aad77f87827a52023-11-20T05:51:26ZengMDPI AGNanomaterials2079-49912020-07-01107131810.3390/nano10071318Room Temperature Magnetic Memory Effect in Cluster-Glassy Fe-Doped NiO NanoparticlesAshish Chhaganlal Gandhi0Tai-Yue Li1B. Vijaya Kumar2P. Muralidhar Reddy3Jen-Chih Peng4Chun-Ming Wu5Sheng Yun Wu6Department of Physics, National Dong Hwa University, Hualien 97401, TaiwanDepartment of Physics, National Dong Hwa University, Hualien 97401, TaiwanDepartment of Chemistry, Nizam College, Osmania University, Hyderabad 500001, IndiaDepartment of Chemistry, University College of Science, Osmania University, Hyderabad 500007, Telangana, IndiaSIKA, National Synchrotron Radiation Research Center, Hsinchu 30076, TaiwanSIKA, National Synchrotron Radiation Research Center, Hsinchu 30076, TaiwanDepartment of Physics, National Dong Hwa University, Hualien 97401, TaiwanThe Fe-doped NiO nanoparticles that were synthesized using a co-precipitation method are characterized by enhanced room-temperature ferromagnetic property evident from magnetic measurements. Neutron powder diffraction experiments suggested an increment of the magnetic moment of 3<i>d</i> ions in the nanoparticles as a function of Fe-concentration. The temperature, time, and field-dependent magnetization measurements show that the effect of Fe-doping in NiO has enhanced the intraparticle interactions due to formed defect clusters. The intraparticle interactions are proposed to bring additional magnetic anisotropy energy barriers that affect the overall magnetic moment relaxation process and emerging as room temperature magnetic memory. The outcome of this study is attractive for the future development of the room temperature ferromagnetic oxide system to facilitate the integration of spintronic devices and understanding of their fundamental physics.https://www.mdpi.com/2079-4991/10/7/1318room temperaturemagnetic memory effectintraparticle interactions4:1 defect clusterFe-doped NiO |
| spellingShingle | Ashish Chhaganlal Gandhi Tai-Yue Li B. Vijaya Kumar P. Muralidhar Reddy Jen-Chih Peng Chun-Ming Wu Sheng Yun Wu Room Temperature Magnetic Memory Effect in Cluster-Glassy Fe-Doped NiO Nanoparticles Nanomaterials room temperature magnetic memory effect intraparticle interactions 4:1 defect cluster Fe-doped NiO |
| title | Room Temperature Magnetic Memory Effect in Cluster-Glassy Fe-Doped NiO Nanoparticles |
| title_full | Room Temperature Magnetic Memory Effect in Cluster-Glassy Fe-Doped NiO Nanoparticles |
| title_fullStr | Room Temperature Magnetic Memory Effect in Cluster-Glassy Fe-Doped NiO Nanoparticles |
| title_full_unstemmed | Room Temperature Magnetic Memory Effect in Cluster-Glassy Fe-Doped NiO Nanoparticles |
| title_short | Room Temperature Magnetic Memory Effect in Cluster-Glassy Fe-Doped NiO Nanoparticles |
| title_sort | room temperature magnetic memory effect in cluster glassy fe doped nio nanoparticles |
| topic | room temperature magnetic memory effect intraparticle interactions 4:1 defect cluster Fe-doped NiO |
| url | https://www.mdpi.com/2079-4991/10/7/1318 |
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