Ultrafast destruction and recovery of the spin density wave order in iron based pnictides: a multi-pulse optical study

M. Naseska; A. Pogrebna; G. Cao; Z. A. Xu; D. Mihailovic; T. Mertelj

doi:10.1103/PhysRevB.98.035148

Ultrafast destruction and recovery of the spin density wave order in iron based pnictides: a multi-pulse optical study

Strongly Correlated Electrons 2018-08-08 v1

Authors: M. Naseska , A. Pogrebna , G. Cao , Z. A. Xu , D. Mihailovic , T. Mertelj

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Abstract

We report on systematic excitation-density dependent all-optical femtosecond time resolved study of the spin-density wave state in iron-based superconductors. The destruction and recovery dynamics are measured by means of the standard and a multi-pulse pump-probe technique. The experimental data are analyzed and interpreted in the framework of an extended three temperature model. The analysis suggests that the optical-phonons energy-relaxation plays an important role in the recovery of almost exclusively electronically driven spin density wave order.

Keywords

spin density wave iron-based superconductors ultrafast dynamics multi-pulse pump-probe three temperature model optical phonons

Cite

@article{arxiv.1804.05769,
  title  = {Ultrafast destruction and recovery of the spin density wave order in iron based pnictides: a multi-pulse optical study},
  author = {M. Naseska and A. Pogrebna and G. Cao and Z. A. Xu and D. Mihailovic and T. Mertelj},
  journal= {arXiv preprint arXiv:1804.05769},
  year   = {2018}
}

Ultrafast destruction and recovery of the spin density wave order in iron based pnictides: a multi-pulse optical study

Abstract

Keywords

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