| Title: | Orbital-dependent electron dynamics in Fe-pnictide superconductors |
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| Authors: | ID Adhikary, Ganesh, Univerza v Novi Gorici (Author)
ID Ressel, Barbara, Univerza v Novi Gorici (Author)
ID Rebernik Ribič, Primož, Univerza v Novi Gorici (Author)
ID Urbančič, Jurij, Univerza v Novi Gorici (Author)
ID De Ninno, Giovanni, Univerza v Novi Gorici (Author)
ID Krizmancic, Damjan, IOM CNR Trieste (Author)
ID Thamizhavel, A., Tata Institute of Fundamental Research (Author)
ID Maiti, Kalobaran, Tata Institute of Fundamental Research (Author)
ID Stupar, Matija, Univerza v Novi Gorici (Author) |
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| Files: |
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | We report on orbital-dependent quasiparticle dynamics in EuFe 2 As 2, a parent compound of Fe-based superconductors, and a way to experimentally identify this behavior using time-and angle-resolved photoelectron spectroscopy across the spin density wave transition. We observe two different relaxation timescales for photoexcited d x z/d y z and d x y electrons. While the itinerant d x z/d y z electrons relax faster through the electron-electron scattering channel, d x y electrons form a quasiequilibrium state with the lattice due to their localized character, and the state decays slowly. Our findings suggest that electron correlation in Fe pnictides is an important property, which should carefully be taken into account when describing the electronic properties of both parent and carrier-doped compounds, and therefore establish a strong connection with cuprates |
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| Keywords: | photoelectron dynamics, Fe based superconductors |
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| Publication version: | Version of Record |
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| Year of publishing: | 2018 |
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| Number of pages: | 205142-2015150 |
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| Numbering: | 20, 98 |
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| PID: | 20.500.12556/RUNG-4254-696ac5e8-2dc8-041e-77c4-8e1a58d8aaed |
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| COBISS.SI-ID: | 5273339 |
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| DOI: | 10.1103/PhysRevB.98.205142 |
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| NUK URN: | URN:SI:UNG:REP:JFPNMRSV |
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| Publication date in RUNG: | 29.11.2018 |
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| Views: | 4344 |
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| Downloads: | 0 |
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