Doping effect on orthorhombic Sr2VO4 with s= 12 dimers

K. Funahashi; T. Higashide; T. Ueno; K. Tasaki; Y. Tahara; M. Adachi; T. Saiki; T. Kajita; T. Katsufuji

doi:10.1103/PhysRevB.98.184422

Doping effect on orthorhombic Sr2VO4 with s= 12 dimers

K. Funahashi, T. Higashide, T. Ueno, K. Tasaki, Y. Tahara, M. Adachi, T. Saiki, T. Kajita, T. Katsufuji

School of Advanced Science and Engineering

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

Abstract

We studied single crystals of orthorhombic Sr2VO4 containing spin-singlet dimers of V4+(3d1) and those with Ti or Nb substituted for V. We found that both Ti and Nb dopings induce the evolution of a Curie-Weiss component in the magnetic susceptibility, but the rate of evolution with doping is several times higher for Nb doping. We also found that Nb doping induces the conduction of d electrons. These results can be explained by the hybridization of the Nb 4d states with the 3d states of the neighboring V ions, possibly causing rearrangement of the d electron in the doubly degenerate e states in the V ion.

Original language	English
Article number	184422
Journal	Physical Review B
Volume	98
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.98.184422
Publication status	Published - 2018 Nov 20

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Doping effect on orthorhombic Sr2VO4 with s= 12 dimers",

abstract = "We studied single crystals of orthorhombic Sr2VO4 containing spin-singlet dimers of V4+(3d1) and those with Ti or Nb substituted for V. We found that both Ti and Nb dopings induce the evolution of a Curie-Weiss component in the magnetic susceptibility, but the rate of evolution with doping is several times higher for Nb doping. We also found that Nb doping induces the conduction of d electrons. These results can be explained by the hybridization of the Nb 4d states with the 3d states of the neighboring V ions, possibly causing rearrangement of the d electron in the doubly degenerate e states in the V ion.",

author = "K. Funahashi and T. Higashide and T. Ueno and K. Tasaki and Y. Tahara and M. Adachi and T. Saiki and T. Kajita and T. Katsufuji",

note = "Funding Information: This work was supported by JST CREST Grant No. JPMJCR15Q2 and by JSPS KAKENHI Grant No. 16H04020. K.F. acknowledges the Leading Graduate Program in Science and Engineering, Waseda University from MEXT, Japan.",

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doi = "10.1103/PhysRevB.98.184422",

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T1 - Doping effect on orthorhombic Sr2VO4 with s= 12 dimers

AU - Funahashi, K.

AU - Higashide, T.

AU - Ueno, T.

AU - Tasaki, K.

AU - Tahara, Y.

AU - Adachi, M.

AU - Saiki, T.

AU - Kajita, T.

AU - Katsufuji, T.

N1 - Funding Information: This work was supported by JST CREST Grant No. JPMJCR15Q2 and by JSPS KAKENHI Grant No. 16H04020. K.F. acknowledges the Leading Graduate Program in Science and Engineering, Waseda University from MEXT, Japan.

PY - 2018/11/20

Y1 - 2018/11/20

N2 - We studied single crystals of orthorhombic Sr2VO4 containing spin-singlet dimers of V4+(3d1) and those with Ti or Nb substituted for V. We found that both Ti and Nb dopings induce the evolution of a Curie-Weiss component in the magnetic susceptibility, but the rate of evolution with doping is several times higher for Nb doping. We also found that Nb doping induces the conduction of d electrons. These results can be explained by the hybridization of the Nb 4d states with the 3d states of the neighboring V ions, possibly causing rearrangement of the d electron in the doubly degenerate e states in the V ion.

AB - We studied single crystals of orthorhombic Sr2VO4 containing spin-singlet dimers of V4+(3d1) and those with Ti or Nb substituted for V. We found that both Ti and Nb dopings induce the evolution of a Curie-Weiss component in the magnetic susceptibility, but the rate of evolution with doping is several times higher for Nb doping. We also found that Nb doping induces the conduction of d electrons. These results can be explained by the hybridization of the Nb 4d states with the 3d states of the neighboring V ions, possibly causing rearrangement of the d electron in the doubly degenerate e states in the V ion.

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