Electronic Coupling of Metal‐to‐Insulator Transitions in Nickelate‐Based Heterostructures
Abstract In rare earth nickelates, the metal‐to‐insulator transition observed as a function of temperature can be described using an electronic and a structural order parameter. The electronic one is linked to the electronic disproportionation observed below the transition temperature and the struct...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-05-01
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| Series: | Advanced Electronic Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aelm.202201291 |
| _version_ | 1827805507938680832 |
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| author | Lucia Varbaro Bernat Mundet Claribel Domínguez Jennifer Fowlie Alexandru B. Georgescu Lukas Korosec Duncan T.L. Alexander Jean‐Marc Triscone |
| author_facet | Lucia Varbaro Bernat Mundet Claribel Domínguez Jennifer Fowlie Alexandru B. Georgescu Lukas Korosec Duncan T.L. Alexander Jean‐Marc Triscone |
| author_sort | Lucia Varbaro |
| collection | DOAJ |
| description | Abstract In rare earth nickelates, the metal‐to‐insulator transition observed as a function of temperature can be described using an electronic and a structural order parameter. The electronic one is linked to the electronic disproportionation observed below the transition temperature and the structural one characterizes the breathing mode that develops in the low temperature phase. Here SmNiO3/NdNiO3 superlattices are grown with insulating LaAlO3 spacer layers to study the unusual coupling of metal‐to‐ insulator transitions observed at SmNiO3/NdNiO3 interfaces and determine the role of the two order parameters. Temperature‐dependent transport measurements reveal that a single unit cell of LaAlO3 inserted between SmNiO3 and NdNiO3 leads to a complete decoupling of the metal‐to‐insulator transitions suggesting that the order parameter controlling the coupling is the electronic one. |
| first_indexed | 2024-03-11T21:26:11Z |
| format | Article |
| id | doaj.art-b368ffa1434c4df0a9cf96ca550942de |
| institution | Directory Open Access Journal |
| issn | 2199-160X |
| language | English |
| last_indexed | 2024-03-11T21:26:11Z |
| publishDate | 2023-05-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Electronic Materials |
| spelling | doaj.art-b368ffa1434c4df0a9cf96ca550942de2023-09-28T04:47:10ZengWiley-VCHAdvanced Electronic Materials2199-160X2023-05-0195n/an/a10.1002/aelm.202201291Electronic Coupling of Metal‐to‐Insulator Transitions in Nickelate‐Based HeterostructuresLucia Varbaro0Bernat Mundet1Claribel Domínguez2Jennifer Fowlie3Alexandru B. Georgescu4Lukas Korosec5Duncan T.L. Alexander6Jean‐Marc Triscone7Department of Quantum Matter Physics University of Geneva Quai Ernest‐Ansermet 24 Geneva 1211 SwitzerlandDepartment of Quantum Matter Physics University of Geneva Quai Ernest‐Ansermet 24 Geneva 1211 SwitzerlandDepartment of Quantum Matter Physics University of Geneva Quai Ernest‐Ansermet 24 Geneva 1211 SwitzerlandDepartment of Applied Physics Stanford Institute for Materials and Energy Sciences Stanford University 2575 Sand Hill Rd, Menlo Park Stanford CA 94025 USADepartment of Quantum Matter Physics University of Geneva Quai Ernest‐Ansermet 24 Geneva 1211 SwitzerlandElectron Spectrometry and Microscopy Laboratory (LSME) Institute of Physics (IPHYS) Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne CH‐1015 SwitzerlandDepartment of Quantum Matter Physics University of Geneva Quai Ernest‐Ansermet 24 Geneva 1211 SwitzerlandDepartment of Materials Science and Engineering Northwestern University Evanston IL 60208 USAAbstract In rare earth nickelates, the metal‐to‐insulator transition observed as a function of temperature can be described using an electronic and a structural order parameter. The electronic one is linked to the electronic disproportionation observed below the transition temperature and the structural one characterizes the breathing mode that develops in the low temperature phase. Here SmNiO3/NdNiO3 superlattices are grown with insulating LaAlO3 spacer layers to study the unusual coupling of metal‐to‐ insulator transitions observed at SmNiO3/NdNiO3 interfaces and determine the role of the two order parameters. Temperature‐dependent transport measurements reveal that a single unit cell of LaAlO3 inserted between SmNiO3 and NdNiO3 leads to a complete decoupling of the metal‐to‐insulator transitions suggesting that the order parameter controlling the coupling is the electronic one.https://doi.org/10.1002/aelm.202201291heterostructuresmetal‐insulator transitionsnickelatestransition metal oxides |
| spellingShingle | Lucia Varbaro Bernat Mundet Claribel Domínguez Jennifer Fowlie Alexandru B. Georgescu Lukas Korosec Duncan T.L. Alexander Jean‐Marc Triscone Electronic Coupling of Metal‐to‐Insulator Transitions in Nickelate‐Based Heterostructures Advanced Electronic Materials heterostructures metal‐insulator transitions nickelates transition metal oxides |
| title | Electronic Coupling of Metal‐to‐Insulator Transitions in Nickelate‐Based Heterostructures |
| title_full | Electronic Coupling of Metal‐to‐Insulator Transitions in Nickelate‐Based Heterostructures |
| title_fullStr | Electronic Coupling of Metal‐to‐Insulator Transitions in Nickelate‐Based Heterostructures |
| title_full_unstemmed | Electronic Coupling of Metal‐to‐Insulator Transitions in Nickelate‐Based Heterostructures |
| title_short | Electronic Coupling of Metal‐to‐Insulator Transitions in Nickelate‐Based Heterostructures |
| title_sort | electronic coupling of metal to insulator transitions in nickelate based heterostructures |
| topic | heterostructures metal‐insulator transitions nickelates transition metal oxides |
| url | https://doi.org/10.1002/aelm.202201291 |
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