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 |
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AIP Publishing LLC
2022-08-01
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Series: | APL Materials |
Online Access: | http://dx.doi.org/10.1063/5.0097881 |
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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 |
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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 |
work_keys_str_mv | AT rnishino electricfieldcontrolofanomaloushalleffectincairo3camno3heterostructure AT tcfujita electricfieldcontrolofanomaloushalleffectincairo3camno3heterostructure AT mkawasaki electricfieldcontrolofanomaloushalleffectincairo3camno3heterostructure |