Published in
American Physical Society, Physical Review Letters, 1(101), 2008
DOI: 10.1103/physrevlett.101.016404
Links
- ORCID
- ORCID
- American Physical Society
- [cloudfront.escholarship.org] | PDF
- [digital.library.unt.edu] | PDF
- [arxiv.org] | PDF
- [www.researchgate.net] | PDF
- [arxiv.org] | PDF
Tools
Crystal-Field Level Inversion in Lightly Mn-DopedSr3Ru2O7
,
S. Klein,
J. D. Denlinger,
H.-J. Lin,
C. T. Chen,
R. Mathieu ,
Y. Kaneko,
Y. Tokura,
S. Satow,
Y. Yoshida,
H. Takagi
and other authors.
Full text: Download
Abstract
Sr3(Ru(1-x)Mnx)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 3d(x2-y2) orbital instead of the expected out-of-plane 3d(3z2-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.