Pregled bibliografske jedinice broj: 693635
Spectrally-resolved femtosecond reflectivity relaxation dynamics in undoped spin-density wave 122-structure iron-based pnictides
Spectrally-resolved femtosecond reflectivity relaxation dynamics in undoped spin-density wave 122-structure iron-based pnictides // Physical Review B - Condensed Matter and Materials Physics, 89 (2014), 16; 165131-1 doi:10.1103/PhysRevB.89.165131 (međunarodna recenzija, članak, znanstveni)
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Naslov
Spectrally-resolved femtosecond reflectivity relaxation dynamics in undoped spin-density wave 122-structure iron-based pnictides
Autori
Pogrebna, Anna ; Vujičić, Nataša ; Mertelj, Tomaž ; Borzda, Tetiana ; Cao, G. ; Xu, A. Zhuan ; Chu, J.-H. ; Fisher, R. Ian ; Mihailović, Dragan
Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 89
(2014), 16;
165131-1
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
spin density wave ; SDW ; iron-based-pnictide ; quasi-particle ; broadband ultrafast transient optical spectroscopy
Sažetak
We systematically investigate temperature- and spectrally-dependent optical reflectivity dynamics in AAs2Fe2, (A=Ba, Sr and Eu), iron-based superconductors parent spin-density-wave (SDW) compounds. Two different relaxation processes are identified. The behavior of the slower process, which is strongly sensitive to the magneto-structural transition, is analyzed in the framework of the relaxation-bottleneck model involving magnons. The results are compared to recent time resolved angular photoemission results (TR-ARPES) and possible alternative assignment of the slower relaxation to the magneto-structural order parameter relaxation is discussed.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
