Strontium Ferrite Under Pressure: Potential Analogue to Strontium Ruthenate
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866911850856185856 |
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| author | Kazemi-Moridani, Azin Beck, Sophie Hampel, Alexander Tremblay, A. -M. S. Côté, Michel Gingras, Olivier |
| author_facet | Kazemi-Moridani, Azin Beck, Sophie Hampel, Alexander Tremblay, A. -M. S. Côté, Michel Gingras, Olivier |
| contents | Despite the significant attention it has garnered over the last thirty years, the paradigmatic material strontium ruthenate remains the focus of critical questions regarding strongly correlated materials. As an alternative platform to unravel some of its perplexing characteristics, we propose to study the isostructural and more correlated material strontium ferrite. Using density functional theory combined with dynamical mean-field theory, we attribute the experimentally observed insulating behavior at zero pressure to strong local electronic correlations generated by Mott and Hund's physics. At high pressure, our simulations reproduce the reported insulator-to-metal transition around 18 GPa. Along with distinctive features of a Hund's metal, the resulting metallic state is found to display an electronic structure analogous to that of strontium ruthenate, suggesting that it could exhibit similar low-energy properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_05314 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Strontium Ferrite Under Pressure: Potential Analogue to Strontium Ruthenate Kazemi-Moridani, Azin Beck, Sophie Hampel, Alexander Tremblay, A. -M. S. Côté, Michel Gingras, Olivier Strongly Correlated Electrons Materials Science Despite the significant attention it has garnered over the last thirty years, the paradigmatic material strontium ruthenate remains the focus of critical questions regarding strongly correlated materials. As an alternative platform to unravel some of its perplexing characteristics, we propose to study the isostructural and more correlated material strontium ferrite. Using density functional theory combined with dynamical mean-field theory, we attribute the experimentally observed insulating behavior at zero pressure to strong local electronic correlations generated by Mott and Hund's physics. At high pressure, our simulations reproduce the reported insulator-to-metal transition around 18 GPa. Along with distinctive features of a Hund's metal, the resulting metallic state is found to display an electronic structure analogous to that of strontium ruthenate, suggesting that it could exhibit similar low-energy properties. |
| title | Strontium Ferrite Under Pressure: Potential Analogue to Strontium Ruthenate |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2312.05314 |