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High resolution resonant inelastic EUV scattering from orbital excitations in a Heisenberg antiferromagnet

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2017

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Caretta, Antonio
Dell'Angela, Martina
Chuang, Yi-De
Kalashnikova, Alexandra M.
Pisarev, Roman V.
Hieke, Florian
Wurth, Wilfried
Casarin, Barbara
Malvestuto, Marco
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https://doi.org/10.1103/PhysRevB.96.184420
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http://arxiv.org/abs/1710.03009

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Physical Review B. American Physical Society (APS). 2017, 96(18), 184420. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.96.184420

Zusammenfassung

We report the high resolution resonant inelastic EUV scattering study of quantum Heisenberg antiferromagnet KCoF3. By tuning the EUV photon energy to cobalt M23 edge, a complete set of low energy 3d spin-orbital excitations is revealed. These low-lying electronic excitations are modeled using an extended multiplet-based mean field calculation to identify the roles of lattice and magnetic degrees of freedom in modifying the RIXS spectral lineshape. We have demonstrated that the temperature dependence of RIXS features upon the antiferromagnetic ordering transition enables us to probe the energetics of short-range spin correlations in this material.

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ISO 690CARETTA, Antonio, Martina DELL'ANGELA, Yi-De CHUANG, Alexandra M. KALASHNIKOVA, Roman V. PISAREV, Davide BOSSINI, Florian HIEKE, Wilfried WURTH, Barbara CASARIN, Marco MALVESTUTO, 2017. High resolution resonant inelastic EUV scattering from orbital excitations in a Heisenberg antiferromagnet. In: Physical Review B. American Physical Society (APS). 2017, 96(18), 184420. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.96.184420
BibTex
@article{Caretta2017-10-09T09:41:03Zresol-53324,
  year={2017},
  doi={10.1103/PhysRevB.96.184420},
  title={High resolution resonant inelastic EUV scattering from orbital excitations in a Heisenberg antiferromagnet},
  number={18},
  volume={96},
  issn={2469-9950},
  journal={Physical Review B},
  author={Caretta, Antonio and Dell'Angela, Martina and Chuang, Yi-De and Kalashnikova, Alexandra M. and Pisarev, Roman V. and Bossini, Davide and Hieke, Florian and Wurth, Wilfried and Casarin, Barbara and Malvestuto, Marco},
  note={Article Number: 184420}
}
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