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Fermi surface of PtCoO2 from quantum oscillations and electronic structure calculations
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dc.contributor.author | Arnold, F. | |
dc.contributor.author | Naumann, M. | |
dc.contributor.author | Rosner, H. | |
dc.contributor.author | Kikugawa, N. | |
dc.contributor.author | Graf, D. | |
dc.contributor.author | Balicas, L. | |
dc.contributor.author | Terashima, T. | |
dc.contributor.author | Uji, S. | |
dc.contributor.author | Takatsu, H. | |
dc.contributor.author | Khim, S. | |
dc.contributor.author | Mackenzie, A. P. | |
dc.contributor.author | Hassinger, E. | |
dc.date.accessioned | 2020-05-15T16:30:09Z | |
dc.date.available | 2020-05-15T16:30:09Z | |
dc.date.issued | 2020-05-01 | |
dc.identifier | 267963968 | |
dc.identifier | 8375fc5e-edc5-4681-acf4-e278c2fab332 | |
dc.identifier | 000529805000001 | |
dc.identifier | 85086001461 | |
dc.identifier.citation | Arnold , F , Naumann , M , Rosner , H , Kikugawa , N , Graf , D , Balicas , L , Terashima , T , Uji , S , Takatsu , H , Khim , S , Mackenzie , A P & Hassinger , E 2020 , ' Fermi surface of PtCoO 2 from quantum oscillations and electronic structure calculations ' , Physical Review B , vol. 101 , no. 19 , 195101 . https://doi.org/10.1103/PhysRevB.101.195101 | en |
dc.identifier.issn | 1098-0121 | |
dc.identifier.other | RIS: urn:251E84F8D843D1585DE4981B3C0B4553 | |
dc.identifier.other | RIS: 10.1103/PhysRevB.101.195101 | |
dc.identifier.uri | https://hdl.handle.net/10023/19952 | |
dc.description | The authors would like to acknowledge the financial support from the Max-Planck Society. E.H. and M.N. acknowledge support from Deutsche Forschungsgemeinschaft (DFG) through the Project No. 107745057 (TRR80: From Electronic Correlations to Functionality). This work is also supported by JSPS KAKENHI (No. 18K04715). A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by the National Science Foundation Cooperative Agreements No. DMR-1157490 and No. DMR-1644779 and the State of Florida. | en |
dc.description.abstract | The delafossite series of layered oxides includes some of the highest conductivity metals ever discovered. Of these, PtCoO2, with a room-temperature resistivity of 1.8 μΩcm for in-plane transport, is the most conducting of all. The high conduction takes place in triangular lattice Pt layers, separated by layers of Co-O octahedra, and the electronic structure is determined by the interplay of the two types of layers. We present a detailed study of quantum oscillations in PtCoO2, at temperatures down to 35 mK and magnetic fields up to 30 T. As for PdCoO2 and PdRhO2, the Fermi surface consists of a single cylinder with mainly Pt character and an effective mass close to the free-electron value. Due to Fermi-surface warping, two close-lying high frequencies are observed. Additionally, a pronounced difference frequency appears. By analyzing the detailed angular dependence of the quantum-oscillation frequencies, we establish the warping parameters of the Fermi surface. We compare these results to the predictions of first-principles electronic-structure calculations including spin-orbit coupling on Pt and Co and on-site correlation U on Co, and hence demonstrate that electronic correlations in the Co-O layers play an important role in determining characteristic features of the electronic structure of PtCoO2. | |
dc.format.extent | 9 | |
dc.format.extent | 1828968 | |
dc.language.iso | eng | |
dc.relation.ispartof | Physical Review B | en |
dc.subject | QC Physics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QC | en |
dc.title | Fermi surface of PtCoO2 from quantum oscillations and electronic structure calculations | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | https://doi.org/10.1103/PhysRevB.101.195101 | |
dc.description.status | Peer reviewed | en |
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