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

doi:10.1103/PhysRevLett.119.017201

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

IMR - Materials Design Division

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

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 language	English
Article number	017201
Journal	Physical Review Letters
Volume	119
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.119.017201
Publication status	Published - 2017 Jul 5

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10.1103/PhysRevLett.119.017201

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title = "Spin-Orbital Correlated Dynamics in the Spinel-Type Vanadium Oxide MnV2 O4",

abstract = "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.",

author = "Keisuke Matsuura and Hajime Sagayama and Amane Uehara and Yoichi Nii and Ryoichi Kajimoto and Kazuya Kamazawa and Kazuhiko Ikeuchi and Sungdae Ji and Nobuyuki Abe and Arima, \{Taka Hisa\}",

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AU - Matsuura, Keisuke

AU - Sagayama, Hajime

AU - Uehara, Amane

AU - Nii, Yoichi

AU - Kajimoto, Ryoichi

AU - Kamazawa, Kazuya

AU - Ikeuchi, Kazuhiko

AU - Ji, Sungdae

AU - Abe, Nobuyuki

AU - Arima, Taka Hisa

PY - 2017/7/5

Y1 - 2017/7/5

N2 - 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.

AB - 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.

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

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