Photoinduced Transient States of Antiferromagnetic Orderings in La${}_{1/3}$Sr${}_{2/3}$FeO${}_3$ and SrFeO${}_3$ Thin Films Observed through Time-resolved Resonant Soft X-ray Scattering

Abstract

The relationship between the magnetic interaction and photoinduced dynamics in antiferromagnetic perovskites is investigated in this study. In La${}_{1/3}$Sr${}_{2/3}$FeO${}_3$ thin films, commensurate spin ordering is accompanied by charge disproportionation, whereas SrFeO${}_3$ thin films show incommensurate helical antiferromagnetic spin ordering due to increased ferromagnetic coupling compared to La${}_{1/3}$Sr${}_{2/3}$FeO${}_3$. To understand the photoinduced spin dynamics in these materials, we investigate the spin ordering through time-resolved resonant soft X-ray scattering. In La${}_{1/3}$Sr${}_{2/3}$FeO${}_3$, ultrafast quenching of the magnetic ordering within 130 fs through a nonthermal process is observed, triggered by charge transfer between the Fe atoms. We compare this to the photoinduced dynamics of the helical magnetic ordering of SrFeO${}_3$. We find that the change in the magnetic coupling through optically induced charge transfer can offer an even more efficient channel for spin-order manipulation.

arXiv comment7 pages, 5 figures

References in corpus (19)

• Magnetoresistance Effects in SrFeO(3-x): Dependence on Phase Composition and Relation to Magnetic and Charge Order
• Versatile helimagnetic phases under magnetic fields in cubic perovskite SrFeO3
• Resonant Elastic Soft X-Ray Scattering
• Spatially resolved ultrafast magnetic dynamics launched at a complex-oxide hetero-interface
• Hole-doping-induced changes in the electronic structure of La${}_{1-x}$Sr${}_x$FeO${}_3$ : soft x-ray photoemission and absorption study of epitaxial thin films
• Femtosecond dynamics of the collinear-to-spiral antiferromagnetic phase transition in CuO
• Phase Fluctuations and the Absence of Topological Defects in Photo-excited Charge Ordered Nickelate
• Emergent topological spin structures in a centrosymmetric cubic perovskite
• Neutron diffraction study of spin and charge ordering in SrFeO(3-delta)
• Melting of Charge Stripes in Vibrationally Driven La1.875Ba0.125CuO4: Assessing the Respective Roles of Electronic and Lattice Order in Frustrated Superconductors
• Origin of the large polarization in multiferroic YMnO${}_3$ thin films revealed by soft and hard x-ray diffraction
• Ultrafast and Energy-Efficient Quenching of Spin Order: Antiferromagnetism Beats Ferromagnetism
• Observation of Electronic Ferroelectric Polarization in Multiferroic YMn${}_2$O${}_5$
• Observation of Devil's Staircase in the Novel Spin Valve System SrCo${}_6$O${}_{11}$
• Ferromagnetic Enhancement of CE-type Spin Ordering in (Pr,Ca)MnO${}_3$
• Photoinduced demagnetization and insulator-to-metal transition in ferromagnetic insulating BaFeO${}_3$ thin films
• Itinerancy-dependent non-collinear spin textures in SrFeO3, CaFeO3, and CaFeO3/SrFeO3 heterostructures probed via resonant x-ray scattering
• Unconventional slowing down of electronic recovery in photoexcited charge-ordered La${}_{1/3}$Sr${}_{2/3}$FeO${}_3$
• Thickness dependence and dimensionality effects of charge and magnetic orderings in La1/3Sr2/3FeO3 thin films

Cited by in corpus (1)

• First-principle Study of Multiple Metastable Charge Ordering States in La${}_{1/3}$Sr${}_{2/3}$FeO${}_3$