Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors
By combining polarized pump-probe spectroscopic and Laue x-ray diffraction measurements, we have observed nonequivalent transient optical responses with the probe beam polarized along the x and y axes in overdoped NaFe1–xCoxAs superconductors. Such transient anisotropic behavior has been uncovered i...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/80418 http://hdl.handle.net/10220/46494 |
| _version_ | 1811677312890961920 |
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| author | Chia, Elbert Ee Min Liu, Shenghua Zhang, Chunfeng Deng, Qiang Wen, Hai-hu Li, Jian-xin Wang, Xiaoyong Xiao, Min |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Chia, Elbert Ee Min Liu, Shenghua Zhang, Chunfeng Deng, Qiang Wen, Hai-hu Li, Jian-xin Wang, Xiaoyong Xiao, Min |
| author_sort | Chia, Elbert Ee Min |
| collection | NTU |
| description | By combining polarized pump-probe spectroscopic and Laue x-ray diffraction measurements, we have observed nonequivalent transient optical responses with the probe beam polarized along the x and y axes in overdoped NaFe1–xCoxAs superconductors. Such transient anisotropic behavior has been uncovered in the tetragonal phase with the doping level and temperature range far from the borders of static nematic phases. The measured transient anisotropy can be well explained as a result of nematic fluctuation driven by an orbital order with energy splitting of the dxz- and dyz- dominant bands. In addition, the doping level dependence and the pressure effect of the crossover temperature show significant differences between the transient nematic fluctuation and static nematic phase, implying spin and orbital orders may play different roles in static and transient nematic behaviors. |
| first_indexed | 2024-10-01T02:35:22Z |
| format | Journal Article |
| id | ntu-10356/80418 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:35:22Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/804182023-02-28T19:30:31Z Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors Chia, Elbert Ee Min Liu, Shenghua Zhang, Chunfeng Deng, Qiang Wen, Hai-hu Li, Jian-xin Wang, Xiaoyong Xiao, Min School of Physical and Mathematical Sciences Transient Anisotropy Superconductors DRNTU::Science::Physics By combining polarized pump-probe spectroscopic and Laue x-ray diffraction measurements, we have observed nonequivalent transient optical responses with the probe beam polarized along the x and y axes in overdoped NaFe1–xCoxAs superconductors. Such transient anisotropic behavior has been uncovered in the tetragonal phase with the doping level and temperature range far from the borders of static nematic phases. The measured transient anisotropy can be well explained as a result of nematic fluctuation driven by an orbital order with energy splitting of the dxz- and dyz- dominant bands. In addition, the doping level dependence and the pressure effect of the crossover temperature show significant differences between the transient nematic fluctuation and static nematic phase, implying spin and orbital orders may play different roles in static and transient nematic behaviors. Published version 2018-11-01T02:41:26Z 2019-12-06T13:48:59Z 2018-11-01T02:41:26Z 2019-12-06T13:48:59Z 2018 Journal Article Liu, S., Zhang, C., Deng, Q., Wen, H., Li, J., Chia, E. E. M., . . . Xiao, M. (2018). Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors. Physical Review B, 97(2), 020505-. doi:10.1103/PhysRevB.97.020505 2469-9950 https://hdl.handle.net/10356/80418 http://hdl.handle.net/10220/46494 10.1103/PhysRevB.97.020505 en Physical Review B © 2018 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: [http://dx.doi.org/10.1103/PhysRevB.97.020505]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 8 p. application/pdf |
| spellingShingle | Transient Anisotropy Superconductors DRNTU::Science::Physics Chia, Elbert Ee Min Liu, Shenghua Zhang, Chunfeng Deng, Qiang Wen, Hai-hu Li, Jian-xin Wang, Xiaoyong Xiao, Min Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors |
| title | Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors |
| title_full | Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors |
| title_fullStr | Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors |
| title_full_unstemmed | Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors |
| title_short | Transient electronic anisotropy in overdoped NaFe1−xCoxAs superconductors |
| title_sort | transient electronic anisotropy in overdoped nafe1 xcoxas superconductors |
| topic | Transient Anisotropy Superconductors DRNTU::Science::Physics |
| url | https://hdl.handle.net/10356/80418 http://hdl.handle.net/10220/46494 |
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