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Naslov:Orbital-dependent electron dynamics in Fe-pnictide superconductors
Avtorji:ID Adhikary, Ganesh, Univerza v Novi Gorici (Avtor)
ID Ressel, Barbara, Univerza v Novi Gorici (Avtor)
ID Rebernik Ribič, Primož, Univerza v Novi Gorici (Avtor)
ID Urbančič, Jurij, Univerza v Novi Gorici (Avtor)
ID De Ninno, Giovanni, Univerza v Novi Gorici (Avtor)
ID Krizmancic, Damjan, IOM CNR Trieste (Avtor)
ID Thamizhavel, A., Tata Institute of Fundamental Research (Avtor)
ID Maiti, Kalobaran, Tata Institute of Fundamental Research (Avtor)
ID Stupar, Matija, Univerza v Novi Gorici (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis: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
Ključne besede:photoelectron dynamics, Fe based superconductors
Verzija publikacije:Objavljena publikacija
Leto izida:2018
Št. strani:205142-2015150
Številčenje:20, 98
PID:20.500.12556/RUNG-4254-696ac5e8-2dc8-041e-77c4-8e1a58d8aaed Novo okno
COBISS.SI-ID:5273339 Novo okno
DOI:10.1103/PhysRevB.98.205142 Novo okno
NUK URN:URN:SI:UNG:REP:JFPNMRSV
Datum objave v RUNG:29.11.2018
Število ogledov:4818
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
ADHIKARY, Ganesh, RESSEL, Barbara, REBERNIK RIBIČ, Primož, URBANČIČ, Jurij, DE NINNO, Giovanni, KRIZMANCIC, Damjan, THAMIZHAVEL, A., MAITI, Kalobaran in STUPAR, Matija, 2018, Orbital-dependent electron dynamics in Fe-pnictide superconductors. Physical Review B [na spletu]. 2018. Vol. 20, no. 98, p. 205142–2015150. [Dostopano 7 april 2025]. DOI 10.1103/PhysRevB.98.205142. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=4254
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Gradivo je del revije

Naslov:Physical Review B
Skrajšan naslov:PRB
Založnik:American Physical Society
Leto izida:2018

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:29.11.2018

Sekundarni jezik

Jezik:Angleški jezik
Naslov:Orbital-dependent electron dynamics in Fe-pnictide superconductors
Opis: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
Ključne besede:photoelectron dynamics, Fe based superconductors


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