Spin-Orbital Correlated Dynamics in the Spinel-Type Vanadium Oxide MnV2 O4

Keisuke Matsuura, Hajime Sagayama, Amane Uehara, Yoichi Nii, Ryoichi Kajimoto, Kazuya Kamazawa, Kazuhiko Ikeuchi, Sungdae Ji, Nobuyuki Abe, Taka Hisa Arima

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13 Citations (Scopus)


We investigate the magnetic dynamics in the spinel-type vanadium oxide MnV2O4. Inelastic neutron scattering around 10 meV and a Heisenberg model analysis have revealed that V3+ spin-wave modes exist at a lower-energy region than previously reported. The scattering around 20 meV cannot be reproduced with the spin-wave analysis. We propose that this scattering could originate from the spin-orbital coupled excitation. This scattering is most likely attributable to V3+ spin-wave modes, entangled with the orbital hybridization between t2g orbitals.

Original languageEnglish
Article number017201
JournalPhysical Review Letters
Issue number1
Publication statusPublished - 2017 Jul 5


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