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Liu J, Gao X, Shi K, Zhang M, Wu J, Ukleev V, Radu F, Ji Y, Deng Z, Wei L, Hong Y, Hu S, Xiao W, Li L, Zhang Q, Wang Z, Wang L, Gan Y, Chen K, Liao Z. Hundred-Fold Enhancement in the Anomalous Hall Effect Induced by Hydrogenation. NANO LETTERS 2024; 24:1351-1359. [PMID: 38251855 DOI: 10.1021/acs.nanolett.3c04368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
The anomalous Hall effect (AHE) is one of the most fascinating transport properties in condensed matter physics. However, the AHE magnitude, which mainly depends on net spin polarization and band topology, is generally small in oxides and thus limits potential applications. Here, we demonstrate a giant enhancement of AHE in a LaCoO3-induced 5d itinerant ferromagnet SrIrO3 by hydrogenation. The anomalous Hall resistivity and anomalous Hall angle, which are two of the most critical parameters in AHE-based devices, are found to increase to 62.2 μΩ·cm and 3%, respectively, showing an unprecedentedly large enhancement ratio of ∼10000%. Theoretical analysis suggests the key roles of Berry curvature in enhancing AHE. Furthermore, the hydrogenation concomitantly induces the significant elevation of Curie temperature from 75 to 160 K and 40-fold reinforcement of coercivity. Such giant regulation and very large AHE magnitude observed in SrIrO3 could pave the path for 5d oxide devices.
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Affiliation(s)
- Junhua Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Xiaofei Gao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Ke Shi
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, China
| | - Minjie Zhang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, China
| | - Jiating Wu
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, China
| | - Victor Ukleev
- Helmholtz-Zentrum-Berlin für Materialien und Energie, Albert-Einstein-Straße 15, Berlin 12489, Germany
| | - Florin Radu
- Helmholtz-Zentrum-Berlin für Materialien und Energie, Albert-Einstein-Straße 15, Berlin 12489, Germany
| | - Yaoyao Ji
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Zhixiong Deng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Long Wei
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Yuhao Hong
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Shilin Hu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Wen Xiao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Lin Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhaosheng Wang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, China
| | - Lingfei Wang
- Hefei National Research Center for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Yulin Gan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Kai Chen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Zhaoliang Liao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
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