Characteristic exciton energy scales in antiferromagnetic NiPS$_3$
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866910906557923328 |
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| author | Warshauer, Jacob A. Chen, Huyongqing Tan, Qishuo Tang, Jing Ling, Xi Hu, Wanzheng |
| author_facet | Warshauer, Jacob A. Chen, Huyongqing Tan, Qishuo Tang, Jing Ling, Xi Hu, Wanzheng |
| contents | Two-dimensional antiferromagnets are promising materials for spintronics. The van der Waals antiferromagnet NiPS$_3$ has attracted extensive interest due to its ultra-narrow exciton feature which is closely linked with the magnetic ordering. Here, we use time-resolved terahertz spectroscopy to investigate photo-excited carriers in NiPS$_3$. We identify the onset of interband transitions and estimate the exciton dissociation energy from the excitation wavelength and fluence dependence of the transient spectral weight. Our results provide key insights to quantify the exciton characteristics and validate the band structure for NiPS$_3$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_06053 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Characteristic exciton energy scales in antiferromagnetic NiPS$_3$ Warshauer, Jacob A. Chen, Huyongqing Tan, Qishuo Tang, Jing Ling, Xi Hu, Wanzheng Strongly Correlated Electrons Materials Science Two-dimensional antiferromagnets are promising materials for spintronics. The van der Waals antiferromagnet NiPS$_3$ has attracted extensive interest due to its ultra-narrow exciton feature which is closely linked with the magnetic ordering. Here, we use time-resolved terahertz spectroscopy to investigate photo-excited carriers in NiPS$_3$. We identify the onset of interband transitions and estimate the exciton dissociation energy from the excitation wavelength and fluence dependence of the transient spectral weight. Our results provide key insights to quantify the exciton characteristics and validate the band structure for NiPS$_3$. |
| title | Characteristic exciton energy scales in antiferromagnetic NiPS$_3$ |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2504.06053 |