Competition between vanadium tetramerization and trimerization in Ba 1-xSrxV13O18

M. Ikeda; T. Okuda; K. Kato; M. Takata; T. Katsufuji

doi:10.1103/PhysRevB.83.134417

Competition between vanadium tetramerization and trimerization in Ba _1-xSr_xV₁₃O₁₈

M. Ikeda, T. Okuda, K. Kato, M. Takata, T. Katsufuji

School of Advanced Science and Engineering

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

10 Citations (Scopus)

Abstract

We studied the transport, magnetic, and structural properties of Ba _1-xSr_xV₁₃O₁₈, in which V and O ions form a sodium-chloride lattice with periodically missing sites. We found that the high-temperature insulating phase is characterized by spin-singlet V tetramers, whereas the low-temperature conducting phase is characterized by V trimers, and these two phases are competing in this series of compounds. Various properties substantially change at the phase transition between the two, indicating a drastic reconstruction of the electronic structure.

Original language	English
Article number	134417
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	83
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.83.134417
Publication status	Published - 2011 Apr 13

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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AU - Okuda, T.

AU - Kato, K.

AU - Takata, M.

AU - Katsufuji, T.

PY - 2011/4/13

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AB - We studied the transport, magnetic, and structural properties of Ba 1-xSrxV13O18, in which V and O ions form a sodium-chloride lattice with periodically missing sites. We found that the high-temperature insulating phase is characterized by spin-singlet V tetramers, whereas the low-temperature conducting phase is characterized by V trimers, and these two phases are competing in this series of compounds. Various properties substantially change at the phase transition between the two, indicating a drastic reconstruction of the electronic structure.

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