Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2022
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2205.14339 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915633276387328 |
|---|---|
| author | Guo, Yucheng Klemm, Mason Oh, Ji Seop Xie, Yaofeng Lei, Bing-Hua Gorovikov, Sergey Pedersen, Tor Michiardi, Matteo Zhdanovich, Sergey Damascelli, Andrea Denlinger, Jonathan Hashimoto, Makoto Lu, Donghui Mo, Sung-Kwan Moore, Rob G. Birgeneau, Robert J. Singh, David J. Dai, Pengcheng Yi, Ming |
| author_facet | Guo, Yucheng Klemm, Mason Oh, Ji Seop Xie, Yaofeng Lei, Bing-Hua Gorovikov, Sergey Pedersen, Tor Michiardi, Matteo Zhdanovich, Sergey Damascelli, Andrea Denlinger, Jonathan Hashimoto, Makoto Lu, Donghui Mo, Sung-Kwan Moore, Rob G. Birgeneau, Robert J. Singh, David J. Dai, Pengcheng Yi, Ming |
| contents | The emergence of unconventional superconductivity in proximity to intertwined electronic orders is especially relevant in the case of iron-based superconductors. Such order consists of an electronic nematic order and a spin density wave in these systems. BaNi$_2$As$_2$, like its well-known iron-based analog BaFe$_2$As$_2$, also hosts a symmetry-breaking structural transition that is coupled to a unidirectional charge density wave (CDW), providing a novel platform to study intertwined orders. Here, through a systematic angle-resolved photoemission spectroscopy study combined with a detwinning $B_1g$ uniaxial strain, we identify distinct spectral evidence of band evolution due to the structural transition as well as CDW-induced band folding. In contrast to the nematicity and spin density wave in BaFe$_2$As$_2$, the structural and CDW order parameters in BaNi$_2$As$_2$ are observed to be strongly coupled and do not separate in the presence of uniaxial strain. Our measurements point to a likely lattice origin of the CDW in BaNi$_2$As$_2$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2205_14339 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Spectral Evidence for Unidirectional Charge Density Wave in Detwinned BaNi$_2$As$_2$ Guo, Yucheng Klemm, Mason Oh, Ji Seop Xie, Yaofeng Lei, Bing-Hua Gorovikov, Sergey Pedersen, Tor Michiardi, Matteo Zhdanovich, Sergey Damascelli, Andrea Denlinger, Jonathan Hashimoto, Makoto Lu, Donghui Mo, Sung-Kwan Moore, Rob G. Birgeneau, Robert J. Singh, David J. Dai, Pengcheng Yi, Ming Strongly Correlated Electrons The emergence of unconventional superconductivity in proximity to intertwined electronic orders is especially relevant in the case of iron-based superconductors. Such order consists of an electronic nematic order and a spin density wave in these systems. BaNi$_2$As$_2$, like its well-known iron-based analog BaFe$_2$As$_2$, also hosts a symmetry-breaking structural transition that is coupled to a unidirectional charge density wave (CDW), providing a novel platform to study intertwined orders. Here, through a systematic angle-resolved photoemission spectroscopy study combined with a detwinning $B_1g$ uniaxial strain, we identify distinct spectral evidence of band evolution due to the structural transition as well as CDW-induced band folding. In contrast to the nematicity and spin density wave in BaFe$_2$As$_2$, the structural and CDW order parameters in BaNi$_2$As$_2$ are observed to be strongly coupled and do not separate in the presence of uniaxial strain. Our measurements point to a likely lattice origin of the CDW in BaNi$_2$As$_2$. |
| title | Spectral Evidence for Unidirectional Charge Density Wave in Detwinned BaNi$_2$As$_2$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2205.14339 |