Anomalous metallic ground state in BaV13 O18

T. Kanzaki; J. Fujioka; Y. Tokura; H. Kuwahara; T. Katsufuji

doi:10.1103/PhysRevB.89.140401

Anomalous metallic ground state in BaV13 O18

T. Kanzaki^*, J. Fujioka, Y. Tokura, H. Kuwahara, T. Katsufuji

^*Corresponding author for this work

School of Advanced Science and Engineering

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

5 Citations (Scopus)

Abstract

We studied single crystals of BaV13O18, in which V ions with an average valence of +2.62 (3d2.38) form a quasi-fcc lattice. We found that the ground state of the stoichiometric crystal is insulating, whereas that of the off-stoichiometric crystal is metallic with a large effective mass. This metallic state can be explained by the Kondo coupling between the magnetic moment existing at the lone V ion and itinerant carriers in the V tetramers.

Original language	English
Article number	140401
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	89
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.89.140401
Publication status	Published - 2014 Apr 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.89.140401

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AU - Kanzaki, T.

AU - Fujioka, J.

AU - Tokura, Y.

AU - Kuwahara, H.

AU - Katsufuji, T.

PY - 2014/4/1

Y1 - 2014/4/1

N2 - We studied single crystals of BaV13O18, in which V ions with an average valence of +2.62 (3d2.38) form a quasi-fcc lattice. We found that the ground state of the stoichiometric crystal is insulating, whereas that of the off-stoichiometric crystal is metallic with a large effective mass. This metallic state can be explained by the Kondo coupling between the magnetic moment existing at the lone V ion and itinerant carriers in the V tetramers.

AB - We studied single crystals of BaV13O18, in which V ions with an average valence of +2.62 (3d2.38) form a quasi-fcc lattice. We found that the ground state of the stoichiometric crystal is insulating, whereas that of the off-stoichiometric crystal is metallic with a large effective mass. This metallic state can be explained by the Kondo coupling between the magnetic moment existing at the lone V ion and itinerant carriers in the V tetramers.

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Anomalous metallic ground state in BaV13 O18

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