Please use this identifier to cite or link to this item:
http://dx.doi.org/10.25673/85796| Title: | CaCu3Ru4O12 : a high-Kondo-temperature transition-metal oxide |
| Author(s): | Takegami, D. Kuo, C.-Y. Kasebayashi, K. Kim, J.-G. Chang, Chun-Fu  Liu, C. E. Wu, C. N. Kasinathan, Deepa Altendorf, S. G. Hoefer, K. Meneghin, F. Marino, A. Liao, Y. F. Tsuei, K. D. Chen, C. T. Ko, K.-T. Günther, A. Ebbinghaus, Stefan Seo, J. W. Lee, D. H. Ryu, G. Komarek, A. C. Sugano, S. Shimakawa, Y. Tanaka, A. Mizokawa, T. Kuneš, J. Tjeng, L. H. Hariki, A. |
| Issue Date: | 2022 |
| Type: | Article |
| Language: | English |
| Abstract: | We present a comprehensive study of CaCu3Ru4O12 using bulk sensitive hard and soft x-ray spectroscopy combined with local-density approximation+dynamical mean-field theory (DMFT) calculations. Correlation effects on both the Cu and Ru ions can be observed. From the Cu 2p core-level spectra, we deduce the presence of magnetic Cu2+ ions hybridized with a reservoir of itinerant electrons. The strong photon energy dependence of the valence band allows us to disentangle the Ru, Cu, and O contributions and, thus, to optimize the DMFT calculations. The calculated spin and charge susceptibilities show that the transition metal oxide CaCu3Ru4O12 must be classified as a Kondo system and that the Kondo temperature is in the range of 500–1000 K. |
| URI: | https://opendata.uni-halle.de//handle/1981185920/87748 http://dx.doi.org/10.25673/85796 |
| Open Access: |  Open access publication |
| License: |  (CC BY 4.0) Creative Commons Attribution 4.0 |
| Sponsor/Funder: | Publikationsfonds MLU |
| Journal Title: | Physical review / X |
| Publisher: | APS |
| Publisher Place: | College Park, Md. |
| Volume: | 12 |
| Issue: | 1 |
| Original Publication: | 10.1103/PhysRevX.12.011017 |
| Appears in Collections: | Open Access Publikationen der MLU |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| PhysRevX.12.011017.pdf | 1.4 MB | Adobe PDF |  View/Open |