Crystal-field level inversion in lightly Mn-doped Sr 3 Ru 2 O 7
Sr3(Ru1−xMnx)2O7, in which 4d-Ru is substituted by the more localized 3d-Mn, is studied by x-ray dichroism and spin-resolved density functional theory. We find that Mn impurities do not exhibit the same 4+ valence of Ru, but act as 3+ acceptors; the extra eg electron occupies the in-plane 3dx2−y2 or...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
3 July 2008
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| In: |
Physical review letters
Year: 2008, Volume: 101, Issue: 1 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.101.016404 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.101.016404 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.101.016404 
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| Author Notes: | M.A. Hossain, Z. Hu, M.W. Haverkort, T. Burnus, C.F. Chang, S. Klein, J.D. Denlinger, H.-J. Lin, C.T. Chen, R. Mathieu, Y. Kaneko, Y. Tokura, S. Satow, Y. Yoshida, H. Takagi, A. Tanaka, I.S. Elfimov, G.A. Sawatzky, L.H. Tjeng, and A. Damascelli |
| Summary: | Sr3(Ru1−xMnx)2O7, in which 4d-Ru is substituted by the more localized 3d-Mn, is studied by x-ray dichroism and spin-resolved density functional theory. We find that Mn impurities do not exhibit the same 4+ valence of Ru, but act as 3+ acceptors; the extra eg electron occupies the in-plane 3dx2−y2 orbital instead of the expected out-of-plane 3d3z2−r2. We propose that the 3d−4d interplay, via the ligand oxygen orbitals, is responsible for this crystal-field level inversion and the material’s transition to an antiferromagnetic, possibly orbitally ordered, low-temperature state. |
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| Item Description: | Die Ziffern "3", "2" und "7" im Titel sind tiefgestellt Gesehen am 07.11.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.101.016404 |