Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices
Artificially fabricated 3d/5d superlattices (SLs) involve both strong electron correlation and spin-orbit coupling in one material by means of interfacial 3d-5d coupling, whose mechanism remains mostly unexplored. In this work we investigated the mechanism of interfacial coupling in LaMnO3/SrIrO3 SL...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2021
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| Online Access: | https://hdl.handle.net/10356/151390 |
| _version_ | 1826114941326721024 |
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| author | Zhang, Yujun Luo, Yong Zheng Wu, Liang Suzuki, Motohiro Zhang, Qinghua Hirata, Yasuyuki Yamagami, Kohei Takubo, Kou Ikeda, Keisuke Yamamoto, Kohei Yasui, Akira Kawamura, Naomi Lin, Chun Koshiishi, Keisuke Liu, Xin Zhang, Jinxing Hotta, Yasushi Wang, Renshaw Xiao Fujimori, Atsushi Lin, Yuanhua Nan, Cewen Shen, Lei Wadati, Hiroki |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Zhang, Yujun Luo, Yong Zheng Wu, Liang Suzuki, Motohiro Zhang, Qinghua Hirata, Yasuyuki Yamagami, Kohei Takubo, Kou Ikeda, Keisuke Yamamoto, Kohei Yasui, Akira Kawamura, Naomi Lin, Chun Koshiishi, Keisuke Liu, Xin Zhang, Jinxing Hotta, Yasushi Wang, Renshaw Xiao Fujimori, Atsushi Lin, Yuanhua Nan, Cewen Shen, Lei Wadati, Hiroki |
| author_sort | Zhang, Yujun |
| collection | NTU |
| description | Artificially fabricated 3d/5d superlattices (SLs) involve both strong electron correlation and spin-orbit coupling in one material by means of interfacial 3d-5d coupling, whose mechanism remains mostly unexplored. In this work we investigated the mechanism of interfacial coupling in LaMnO3/SrIrO3 SLs by several spectroscopic approaches. Hard x-ray absorption, magnetic circular dichroism and photoemission spectra evidence the systematic modulation of the Ir ferromagnetism and the electronic structure with the change of the SL repetition period. First-principles calculations further reveal the mechanism of the SL-period dependence of the interfacial electronic structure and the local properties of the Ir moments, confirming that the formation of Ir-Mn molecular
orbital is responsible for the interfacial coupling effects. The SL-period dependence of the ratio between orbital and spin components of the Ir magnetic moments can be attributed to the realignment of electron spin during
the formation of the interfacial molecular orbital. Our results clarify the nature of interfacial coupling in this prototypical 3d/5d SL system and the conclusion will shed light on the study of other strongly correlated and spin-orbit coupled oxide heterointerfaces. |
| first_indexed | 2024-10-01T03:47:25Z |
| format | Journal Article |
| id | ntu-10356/151390 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:47:25Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1513902023-02-28T19:54:18Z Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices Zhang, Yujun Luo, Yong Zheng Wu, Liang Suzuki, Motohiro Zhang, Qinghua Hirata, Yasuyuki Yamagami, Kohei Takubo, Kou Ikeda, Keisuke Yamamoto, Kohei Yasui, Akira Kawamura, Naomi Lin, Chun Koshiishi, Keisuke Liu, Xin Zhang, Jinxing Hotta, Yasushi Wang, Renshaw Xiao Fujimori, Atsushi Lin, Yuanhua Nan, Cewen Shen, Lei Wadati, Hiroki School of Physical and Mathematical Sciences Science::Physics Superlattices Transition Metal Oxides Artificially fabricated 3d/5d superlattices (SLs) involve both strong electron correlation and spin-orbit coupling in one material by means of interfacial 3d-5d coupling, whose mechanism remains mostly unexplored. In this work we investigated the mechanism of interfacial coupling in LaMnO3/SrIrO3 SLs by several spectroscopic approaches. Hard x-ray absorption, magnetic circular dichroism and photoemission spectra evidence the systematic modulation of the Ir ferromagnetism and the electronic structure with the change of the SL repetition period. First-principles calculations further reveal the mechanism of the SL-period dependence of the interfacial electronic structure and the local properties of the Ir moments, confirming that the formation of Ir-Mn molecular orbital is responsible for the interfacial coupling effects. The SL-period dependence of the ratio between orbital and spin components of the Ir magnetic moments can be attributed to the realignment of electron spin during the formation of the interfacial molecular orbital. Our results clarify the nature of interfacial coupling in this prototypical 3d/5d SL system and the conclusion will shed light on the study of other strongly correlated and spin-orbit coupled oxide heterointerfaces. Ministry of Education (MOE) Published version 2021-06-14T09:37:17Z 2021-06-14T09:37:17Z 2020 Journal Article Zhang, Y., Luo, Y. Z., Wu, L., Suzuki, M., Zhang, Q., Hirata, Y., Yamagami, K., Takubo, K., Ikeda, K., Yamamoto, K., Yasui, A., Kawamura, N., Lin, C., Koshiishi, K., Liu, X., Zhang, J., Hotta, Y., Wang, R. X., Fujimori, A., ...Wadati, H. (2020). Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices. Physical Review Research, 2(3). https://dx.doi.org/10.1103/PhysRevResearch.2.033496 2643-1564 https://hdl.handle.net/10356/151390 10.1103/PhysRevResearch.2.033496 3 2 en Physical Review Research © 2020 The Author(s) (American Physical Society). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. application/pdf |
| spellingShingle | Science::Physics Superlattices Transition Metal Oxides Zhang, Yujun Luo, Yong Zheng Wu, Liang Suzuki, Motohiro Zhang, Qinghua Hirata, Yasuyuki Yamagami, Kohei Takubo, Kou Ikeda, Keisuke Yamamoto, Kohei Yasui, Akira Kawamura, Naomi Lin, Chun Koshiishi, Keisuke Liu, Xin Zhang, Jinxing Hotta, Yasushi Wang, Renshaw Xiao Fujimori, Atsushi Lin, Yuanhua Nan, Cewen Shen, Lei Wadati, Hiroki Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices |
| title | Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices |
| title_full | Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices |
| title_fullStr | Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices |
| title_full_unstemmed | Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices |
| title_short | Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices |
| title_sort | interfacial hybridization modified ir ferromagnetism and electronic structure in lamno3 sriro3 superlattices |
| topic | Science::Physics Superlattices Transition Metal Oxides |
| url | https://hdl.handle.net/10356/151390 |
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