Turn-on of Current-Induced Spin Torque upon Noncollinear Antiferromagnetic Ordering in Delafossite PdCrO2
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arXiv
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917018464157696 |
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| author | Huang, Xiaoxi Song, Qi Gurung, Gautam Pharis, Daniel A. Cham, Thow Min Jerald Chen, Yulan Jain, Rakshit Olszewski, Maciej Feng, Yufan El-Ghazaly, Amal Tsymbal, Evgeny Y. Schlom, Darrell G. Ralph, Daniel C. |
| author_facet | Huang, Xiaoxi Song, Qi Gurung, Gautam Pharis, Daniel A. Cham, Thow Min Jerald Chen, Yulan Jain, Rakshit Olszewski, Maciej Feng, Yufan El-Ghazaly, Amal Tsymbal, Evgeny Y. Schlom, Darrell G. Ralph, Daniel C. |
| contents | We report measurements of the current-induced spin torque produced by the delafossite antiferromagnet PdCrO2 and acting on an adjacent ferromagnetic permalloy layer. The spin torque increases strongly as the temperature is reduced through the Neel temperature, when the PdCrO2 transitions from a paramagnetic phase to a noncollinear antiferromagnetic state. This result is qualitatively consistent with density functional theory calculations regarding how spin-current generation changes upon antiferromagnetic ordering in PdCrO2. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_14103 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Turn-on of Current-Induced Spin Torque upon Noncollinear Antiferromagnetic Ordering in Delafossite PdCrO2 Huang, Xiaoxi Song, Qi Gurung, Gautam Pharis, Daniel A. Cham, Thow Min Jerald Chen, Yulan Jain, Rakshit Olszewski, Maciej Feng, Yufan El-Ghazaly, Amal Tsymbal, Evgeny Y. Schlom, Darrell G. Ralph, Daniel C. Materials Science We report measurements of the current-induced spin torque produced by the delafossite antiferromagnet PdCrO2 and acting on an adjacent ferromagnetic permalloy layer. The spin torque increases strongly as the temperature is reduced through the Neel temperature, when the PdCrO2 transitions from a paramagnetic phase to a noncollinear antiferromagnetic state. This result is qualitatively consistent with density functional theory calculations regarding how spin-current generation changes upon antiferromagnetic ordering in PdCrO2. |
| title | Turn-on of Current-Induced Spin Torque upon Noncollinear Antiferromagnetic Ordering in Delafossite PdCrO2 |
| topic | Materials Science |
| url | https://arxiv.org/abs/2510.14103 |