Ji, Kunlang ; Paul, Arpita ; Solana-Madruga, Elena ; Arevalo-Lopez, Angel M. ; Waghmare, Umesh V. ; Attfield, J. Paul (2020) YRuO3 : A quantum weak ferromagnet Physical Review Materials, 4 (9). ISSN 2475-9953
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Official URL: http://doi.org/10.1103/PhysRevMaterials.4.091402
Related URL: http://dx.doi.org/10.1103/PhysRevMaterials.4.091402
Abstract
The perovskite YRuO 3 containing low-spin d 5 Ru 3+ has a Pnma orthorhombic structure with elongated RuO 6 octahedra evidencing orbital order and is insulating to low temperatures with a band gap of 70 meV. Canted antiferromagnetic Ru 3+ spin order is observed below T C = 97 K, and magnetization plateaus that emerge below 62 K reveal a quantum weak ferromagnetic state where 1/8 of the spins are reversed, reflecting extreme singleion anisotropy resulting from the strong spin-orbit coupling of the d 5 Ru 3+ ion. Dynamic effects of the reversed spins give rise to an unusual negative AC susceptibility response, and a partial freezing of this motion occurs at 27 K.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 135807 |
| Deposited On: | 18 Aug 2023 11:01 |
| Last Modified: | 18 Aug 2023 11:01 |
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