Phonon and magnetic dimer excitations in Fe-based S=2 spin ladder compound BaFe2Se2O

@article{Popovic2014PhononAM,
  title={Phonon and magnetic dimer excitations in Fe-based S=2 spin ladder compound BaFe2Se2O},
  author={Z. V. Popovi'c and M. vS'cepanovi'c and N. Lazarevi'c and Milovs M. Radonji'c and D. Tanaskovi'c and Hechang Lei and Cedomir Petrovic},
  journal={Physical Review B},
  year={2014},
  volume={89}
}
Raman scattering spectra of new Fe-based S=2 spin ladder compound BaFe2Se2O are measured in a temperature range between 15 K and 623 K. All six A1g and two B1g Raman active modes of BaFe2Se2O, predicted by the factor-group analysis, have been experimentally observed at energies that are in a rather good agreement with the lattice dynamics calculation. The antiferromagnetic long-range spin ordering in BaFe2Se2O below TN=240 K leaves a fingerprint both in the A1g and B1g phonon mode linewidth and… Expand
7 Citations

Figures and Tables from this paper

Flat-band spin dynamics and phonon anomalies of the saw-tooth spin-chain system Fe2O(SeO3)2
Fe$^{3+}$ $S = 5/2$ ions form saw-tooth like chains along the $a$ axis of the oxo-selenite Fe$_2$O(SeO$_3$)$_2$ and an onset of long-range magnetic order is observed for temperatures below $T_C =Expand
Spin interactions and magnetic order in the iron oxychalcogenides BaFe2Q2O(Q=Sand Se)
The ability to tune the iron chalcogenides BaFe2Q3 from Mott insulators, to metals and then superconductors with applied pressure has renewed interest in low-dimensional iron chalcogenides andExpand
The magnetic and electronic properties of oxyselenides-influence of transition metal ions and lanthanides.
  • C. Stock, E. McCabe
  • Materials Science, Medicine
  • Journal of physics. Condensed matter : an Institute of Physics journal
  • 2016
TLDR
The focus is on the influence of lanthanides and transition metal ions on the intertwined magnetic and electronic properties of oxyselenides and comparisons are made with iron based pnictide and chalcogenide systems. Expand
S = 2 Spin Ladders in the Sulfide Oxide BaFe2S2O
Invited for the cover of this issue is the group of Martin Valldor at MPI CPfS, Dresden, Germany. The cover image shows globular grains within the particles of BaFe2S2O and their pleochroiticExpand
Two-magnon Raman scattering in antiferromagnetic phases of frustrated spin models on the honeycomb lattice
Junru Pan, Feng Jin, Jianting Ji, Qingming Zhang, 2 and Rong Yu ∗ Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University ofExpand