Reduction-Induced Magnetic Behavior in LaFeO<sub>3−δ</sub> Thin Films
The effect of oxygen reduction on the magnetic properties of LaFeO<sub>3−δ</sub> (LFO) thin films was studied to better understand the viability of LFO as a candidate for magnetoionic memory. Differences in the amount of oxygen lost by LFO and its magnetic behavior were observed in nomin...
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| Online Access: | https://www.mdpi.com/1996-1944/17/5/1188 |
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| author | Nathan D. Arndt Eitan Hershkovitz Labdhi Shah Kristoffer Kjærnes Chao-Yao Yang Purnima P. Balakrishnan Mohammed S. Shariff Shaun Tauro Daniel B. Gopman Brian J. Kirby Alexander J. Grutter Thomas Tybell Honggyu Kim Ryan F. Need |
| author_facet | Nathan D. Arndt Eitan Hershkovitz Labdhi Shah Kristoffer Kjærnes Chao-Yao Yang Purnima P. Balakrishnan Mohammed S. Shariff Shaun Tauro Daniel B. Gopman Brian J. Kirby Alexander J. Grutter Thomas Tybell Honggyu Kim Ryan F. Need |
| author_sort | Nathan D. Arndt |
| collection | DOAJ |
| description | The effect of oxygen reduction on the magnetic properties of LaFeO<sub>3−δ</sub> (LFO) thin films was studied to better understand the viability of LFO as a candidate for magnetoionic memory. Differences in the amount of oxygen lost by LFO and its magnetic behavior were observed in nominally identical LFO films grown on substrates prepared using different common methods. In an LFO film grown on <i>as-received</i> SrTiO<sub>3</sub> (STO) substrate, the original perovskite film structure was preserved following reduction, and remnant magnetization was only seen at low temperatures. In a LFO film grown on <i>annealed</i> STO, the LFO lost significantly more oxygen and the microstructure decomposed into La- and Fe-rich regions with remnant magnetization that persisted up to room temperature. These results demonstrate an ability to access multiple, distinct magnetic states via oxygen reduction in the same starting material and suggest LFO may be a suitable materials platform for nonvolatile multistate memory. |
| first_indexed | 2024-04-25T00:25:24Z |
| format | Article |
| id | doaj.art-52bf8da69fd2477db92dd65f9df724bb |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-25T00:25:24Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-52bf8da69fd2477db92dd65f9df724bb2024-03-12T16:49:35ZengMDPI AGMaterials1996-19442024-03-01175118810.3390/ma17051188Reduction-Induced Magnetic Behavior in LaFeO<sub>3−δ</sub> Thin FilmsNathan D. Arndt0Eitan Hershkovitz1Labdhi Shah2Kristoffer Kjærnes3Chao-Yao Yang4Purnima P. Balakrishnan5Mohammed S. Shariff6Shaun Tauro7Daniel B. Gopman8Brian J. Kirby9Alexander J. Grutter10Thomas Tybell11Honggyu Kim12Ryan F. Need13Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USADepartment of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USADepartment of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USADepartment of Electronic Systems, NTNU—Norwegian University of Science and Technology, 7491 Trondheim, NorwayDepartment of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, TaiwanNIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MA 20899, USADepartment of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USADepartment of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USAMaterials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, MA 20899, USANIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MA 20899, USANIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MA 20899, USADepartment of Electronic Systems, NTNU—Norwegian University of Science and Technology, 7491 Trondheim, NorwayDepartment of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USADepartment of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USAThe effect of oxygen reduction on the magnetic properties of LaFeO<sub>3−δ</sub> (LFO) thin films was studied to better understand the viability of LFO as a candidate for magnetoionic memory. Differences in the amount of oxygen lost by LFO and its magnetic behavior were observed in nominally identical LFO films grown on substrates prepared using different common methods. In an LFO film grown on <i>as-received</i> SrTiO<sub>3</sub> (STO) substrate, the original perovskite film structure was preserved following reduction, and remnant magnetization was only seen at low temperatures. In a LFO film grown on <i>annealed</i> STO, the LFO lost significantly more oxygen and the microstructure decomposed into La- and Fe-rich regions with remnant magnetization that persisted up to room temperature. These results demonstrate an ability to access multiple, distinct magnetic states via oxygen reduction in the same starting material and suggest LFO may be a suitable materials platform for nonvolatile multistate memory.https://www.mdpi.com/1996-1944/17/5/1188magnetic thin filmsmagnetoionicsferrites |
| spellingShingle | Nathan D. Arndt Eitan Hershkovitz Labdhi Shah Kristoffer Kjærnes Chao-Yao Yang Purnima P. Balakrishnan Mohammed S. Shariff Shaun Tauro Daniel B. Gopman Brian J. Kirby Alexander J. Grutter Thomas Tybell Honggyu Kim Ryan F. Need Reduction-Induced Magnetic Behavior in LaFeO<sub>3−δ</sub> Thin Films Materials magnetic thin films magnetoionics ferrites |
| title | Reduction-Induced Magnetic Behavior in LaFeO<sub>3−δ</sub> Thin Films |
| title_full | Reduction-Induced Magnetic Behavior in LaFeO<sub>3−δ</sub> Thin Films |
| title_fullStr | Reduction-Induced Magnetic Behavior in LaFeO<sub>3−δ</sub> Thin Films |
| title_full_unstemmed | Reduction-Induced Magnetic Behavior in LaFeO<sub>3−δ</sub> Thin Films |
| title_short | Reduction-Induced Magnetic Behavior in LaFeO<sub>3−δ</sub> Thin Films |
| title_sort | reduction induced magnetic behavior in lafeo sub 3 δ sub thin films |
| topic | magnetic thin films magnetoionics ferrites |
| url | https://www.mdpi.com/1996-1944/17/5/1188 |
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