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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2402.18779 |
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| _version_ | 1866913289173204992 |
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| author | Kang, Ruizhe Ge, Jian-Feng He, Yang Zhu, Zhihuai Larson, Daniel T. Saghir, Mohammed Hoffman, Jason D. Balakrishnan, Geetha Hoffman, Jennifer E. |
| author_facet | Kang, Ruizhe Ge, Jian-Feng He, Yang Zhu, Zhihuai Larson, Daniel T. Saghir, Mohammed Hoffman, Jason D. Balakrishnan, Geetha Hoffman, Jennifer E. |
| contents | BiTeI is a polar semiconductor with strong spin-orbit coupling (SOC) that produces large Rashba spin splitting. Due to its potential utility in spintronics and magnetoelectrics, it is essential to understand how defects impact the spin transport in this material. Using scanning tunneling microscopy and spectroscopy, we image ring-like charging states of single-atom defects on the iodine surface of BiTeI. We observe nanoscale variations in the Rashba energy around each defect, which we correlate with the local electric field extracted from the bias dependence of each ring radius. Our data demonstrate the local impact of atomic defects on the Rashba effect, which is both a challenge and an opportunity for the development of future nanoscale spintronic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_18779 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nanoscale variation of the Rashba energy in BiTeI Kang, Ruizhe Ge, Jian-Feng He, Yang Zhu, Zhihuai Larson, Daniel T. Saghir, Mohammed Hoffman, Jason D. Balakrishnan, Geetha Hoffman, Jennifer E. Mesoscale and Nanoscale Physics Materials Science BiTeI is a polar semiconductor with strong spin-orbit coupling (SOC) that produces large Rashba spin splitting. Due to its potential utility in spintronics and magnetoelectrics, it is essential to understand how defects impact the spin transport in this material. Using scanning tunneling microscopy and spectroscopy, we image ring-like charging states of single-atom defects on the iodine surface of BiTeI. We observe nanoscale variations in the Rashba energy around each defect, which we correlate with the local electric field extracted from the bias dependence of each ring radius. Our data demonstrate the local impact of atomic defects on the Rashba effect, which is both a challenge and an opportunity for the development of future nanoscale spintronic devices. |
| title | Nanoscale variation of the Rashba energy in BiTeI |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2402.18779 |