Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2407.07984 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910522721435648 |
|---|---|
| author | Wang, Haozhe de la Torre, Alberto Race, Joseph T. Wang, Qiaochu Ruff, Jacob P. C. Woodward, Patrick M. Plumb, Kemp W. Walker, David Xie, Weiwei |
| author_facet | Wang, Haozhe de la Torre, Alberto Race, Joseph T. Wang, Qiaochu Ruff, Jacob P. C. Woodward, Patrick M. Plumb, Kemp W. Walker, David Xie, Weiwei |
| contents | In this study, we report a tetragonal perovskite structure of SrIrO$_3$ (P4/mmm, a = 3.9362(9) Å, c = 7.880(3) Å) synthesized at 6 GPa and 1400 $°$C, employing the ambient pressure monoclinic SrIrO$_3$ with distorted 6H structure as a precursor. The crystal structure of tetragonal SrIrO3 was evaluated on the basis of single crystal and powder X-ray diffraction. A cubic indexing was observed attributed to overlooked superlattice reflections. Weak fractional peaks in the H and K dimensions suggest possible structure modulation by oxygen defects. Magnetization study reveals weak paramagnetic behavior down to 2 K, indicative of the interplay between spin-orbit coupling, electron correlations, and crystal electric field. Additionally, measurements of electrical resistivity display metallic behavior with an upturn at about 54 K, ascribed to weak electron localization and possible structural defects. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_07984 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Pseudosymmetry in Tetragonal Perovskite SrIrO$_3$ Synthesized under High Pressure Wang, Haozhe de la Torre, Alberto Race, Joseph T. Wang, Qiaochu Ruff, Jacob P. C. Woodward, Patrick M. Plumb, Kemp W. Walker, David Xie, Weiwei Materials Science In this study, we report a tetragonal perovskite structure of SrIrO$_3$ (P4/mmm, a = 3.9362(9) Å, c = 7.880(3) Å) synthesized at 6 GPa and 1400 $°$C, employing the ambient pressure monoclinic SrIrO$_3$ with distorted 6H structure as a precursor. The crystal structure of tetragonal SrIrO3 was evaluated on the basis of single crystal and powder X-ray diffraction. A cubic indexing was observed attributed to overlooked superlattice reflections. Weak fractional peaks in the H and K dimensions suggest possible structure modulation by oxygen defects. Magnetization study reveals weak paramagnetic behavior down to 2 K, indicative of the interplay between spin-orbit coupling, electron correlations, and crystal electric field. Additionally, measurements of electrical resistivity display metallic behavior with an upturn at about 54 K, ascribed to weak electron localization and possible structural defects. |
| title | Pseudosymmetry in Tetragonal Perovskite SrIrO$_3$ Synthesized under High Pressure |
| topic | Materials Science |
| url | https://arxiv.org/abs/2407.07984 |