Electric field control of anomalous Hall effect in CaIrO3/CaMnO3 heterostructure
We demonstrate an electric field control of an anomalous Hall effect emerging in CaIrO3/CaMnO3 heterostructures. We fabricate both electron-type and hole-type carrier samples by tuning epitaxial strain and, then, control the carrier density in a CaIrO3 layer via electric double layer gating techniqu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-08-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/5.0097881 |
| _version_ | 1811205993622667264 |
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| author | R. Nishino T. C. Fujita M. Kawasaki |
| author_facet | R. Nishino T. C. Fujita M. Kawasaki |
| author_sort | R. Nishino |
| collection | DOAJ |
| description | We demonstrate an electric field control of an anomalous Hall effect emerging in CaIrO3/CaMnO3 heterostructures. We fabricate both electron-type and hole-type carrier samples by tuning epitaxial strain and, then, control the carrier density in a CaIrO3 layer via electric double layer gating technique. As the Fermi energy of CaIrO3 is tuned close to the Dirac line node, anomalous Hall conductivity is enlarged in both carrier-type samples. This result reveals that the anomalous Hall effect comes from the intrinsic origin, reflecting the Dirac-like dispersion in CaIrO3. We propose that band splitting induced by the interface ferromagnetism yields several band crossing points near the Dirac line node. These points act as a source of the Berry curvature and contribute to the anomalous Hall effect. |
| first_indexed | 2024-04-12T03:40:46Z |
| format | Article |
| id | doaj.art-43298299f255426e9e75e281495da8d9 |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-04-12T03:40:46Z |
| publishDate | 2022-08-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-43298299f255426e9e75e281495da8d92022-12-22T03:49:18ZengAIP Publishing LLCAPL Materials2166-532X2022-08-01108081104081104-510.1063/5.0097881Electric field control of anomalous Hall effect in CaIrO3/CaMnO3 heterostructureR. Nishino0T. C. Fujita1M. Kawasaki2Department of Applied Physics and Quantum Phase Electronics Center, University of Tokyo, Tokyo 113-8656, JapanDepartment of Applied Physics and Quantum Phase Electronics Center, University of Tokyo, Tokyo 113-8656, JapanDepartment of Applied Physics and Quantum Phase Electronics Center, University of Tokyo, Tokyo 113-8656, JapanWe demonstrate an electric field control of an anomalous Hall effect emerging in CaIrO3/CaMnO3 heterostructures. We fabricate both electron-type and hole-type carrier samples by tuning epitaxial strain and, then, control the carrier density in a CaIrO3 layer via electric double layer gating technique. As the Fermi energy of CaIrO3 is tuned close to the Dirac line node, anomalous Hall conductivity is enlarged in both carrier-type samples. This result reveals that the anomalous Hall effect comes from the intrinsic origin, reflecting the Dirac-like dispersion in CaIrO3. We propose that band splitting induced by the interface ferromagnetism yields several band crossing points near the Dirac line node. These points act as a source of the Berry curvature and contribute to the anomalous Hall effect.http://dx.doi.org/10.1063/5.0097881 |
| spellingShingle | R. Nishino T. C. Fujita M. Kawasaki Electric field control of anomalous Hall effect in CaIrO3/CaMnO3 heterostructure APL Materials |
| title | Electric field control of anomalous Hall effect in CaIrO3/CaMnO3 heterostructure |
| title_full | Electric field control of anomalous Hall effect in CaIrO3/CaMnO3 heterostructure |
| title_fullStr | Electric field control of anomalous Hall effect in CaIrO3/CaMnO3 heterostructure |
| title_full_unstemmed | Electric field control of anomalous Hall effect in CaIrO3/CaMnO3 heterostructure |
| title_short | Electric field control of anomalous Hall effect in CaIrO3/CaMnO3 heterostructure |
| title_sort | electric field control of anomalous hall effect in cairo3 camno3 heterostructure |
| url | http://dx.doi.org/10.1063/5.0097881 |
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