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Pregled bibliografske jedinice broj: 693635

Spectrally-resolved femtosecond reflectivity relaxation dynamics in undoped spin-density wave 122-structure iron-based pnictides


Pogrebna, Anna; Vujičić, Nataša; Mertelj, Tomaž; Borzda, Tetiana; Cao, G.; Xu, A. Zhuan; Chu, J.-H.; Fisher, R. Ian; Mihailović, Dragan
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)


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



POVEZANOST RADA


Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Nataša Vujičić, (278444)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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