Self-doping effect and successive magnetic transitions in superconducting Sr2 VFeAsO3

Guang Han Cao; Zhifeng Ma; Cao Wang; Yunlei Sun; Jinke Bao; Shuai Jiang; Yongkang Luo; Chunmu Feng; Yi Zhou; Zhi Xie; Fengchun Hu; Shiqiang Wei; I. Nowik; I. Felner; Lei Zhang; Zhu'An Xu; Fu Chun Zhang

doi:10.1103/PhysRevB.82.104518

Self-doping effect and successive magnetic transitions in superconducting Sr2 VFeAsO3

Guang Han Cao^*
, Zhifeng Ma
, Cao Wang
, Yunlei Sun
, Jinke Bao
, Shuai Jiang
, Yongkang Luo
, Chunmu Feng
, Yi Zhou
, Zhi Xie
, Fengchun Hu
, Shiqiang Wei
, I. Nowik
, I. Felner
, Lei Zhang
, Zhu'An Xu
, Fu Chun Zhang

^*Corresponding author for this work

Racah Institute of Physics

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

55 Scopus citations

Abstract

We have studied a quinary Fe-based superconductor Sr₂ VFeAsO₃ by the measurements of x-ray diffraction, x-ray absorption, Mössbauer spectrum, resistivity, magnetization, and specific heat. This apparently undoped oxyarsenide is shown to be self-doped via electron transfer from the V3⁺ ions. We observed successive magnetic transitions within the VO₂ layers: an antiferromagnetic transition at 150 K followed by a weak ferromagnetic transition at 55 K. The spin orderings within the VO ₂ planes are discussed based on mixed valence of V3⁺ and V4⁺.

Original language	English
Article number	104518
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.82.104518
State	Published - 22 Sep 2010

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Cao, G. H., Ma, Z., Wang, C., Sun, Y., Bao, J., Jiang, S., Luo, Y., Feng, C., Zhou, Y., Xie, Z., Hu, F., Wei, S., Nowik, I., Felner, I., Zhang, L., Xu, ZA., & Zhang, F. C. (2010). Self-doping effect and successive magnetic transitions in superconducting Sr2 VFeAsO3. Physical Review B - Condensed Matter and Materials Physics, 82(10), Article 104518. https://doi.org/10.1103/PhysRevB.82.104518

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title = "Self-doping effect and successive magnetic transitions in superconducting Sr2 VFeAsO3",

abstract = "We have studied a quinary Fe-based superconductor Sr2 VFeAsO3 by the measurements of x-ray diffraction, x-ray absorption, M{\"o}ssbauer spectrum, resistivity, magnetization, and specific heat. This apparently undoped oxyarsenide is shown to be self-doped via electron transfer from the V3+ ions. We observed successive magnetic transitions within the VO2 layers: an antiferromagnetic transition at 150 K followed by a weak ferromagnetic transition at 55 K. The spin orderings within the VO 2 planes are discussed based on mixed valence of V3+ and V4+.",

author = "Cao, \{Guang Han\} and Zhifeng Ma and Cao Wang and Yunlei Sun and Jinke Bao and Shuai Jiang and Yongkang Luo and Chunmu Feng and Yi Zhou and Zhi Xie and Fengchun Hu and Shiqiang Wei and I. Nowik and I. Felner and Lei Zhang and Zhu'An Xu and Zhang, \{Fu Chun\}",

year = "2010",

month = sep,

day = "22",

doi = "10.1103/PhysRevB.82.104518",

language = "אנגלית",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

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Cao, GH, Ma, Z, Wang, C, Sun, Y, Bao, J, Jiang, S, Luo, Y, Feng, C, Zhou, Y, Xie, Z, Hu, F, Wei, S, Nowik, I, Felner, I, Zhang, L, Xu, ZA & Zhang, FC 2010, 'Self-doping effect and successive magnetic transitions in superconducting Sr2 VFeAsO3', Physical Review B - Condensed Matter and Materials Physics, vol. 82, no. 10, 104518. https://doi.org/10.1103/PhysRevB.82.104518

TY - JOUR

T1 - Self-doping effect and successive magnetic transitions in superconducting Sr2 VFeAsO3

AU - Cao, Guang Han

AU - Ma, Zhifeng

AU - Wang, Cao

AU - Sun, Yunlei

AU - Bao, Jinke

AU - Jiang, Shuai

AU - Luo, Yongkang

AU - Feng, Chunmu

AU - Zhou, Yi

AU - Xie, Zhi

AU - Hu, Fengchun

AU - Wei, Shiqiang

AU - Nowik, I.

AU - Felner, I.

AU - Zhang, Lei

AU - Xu, Zhu'An

AU - Zhang, Fu Chun

PY - 2010/9/22

Y1 - 2010/9/22

N2 - We have studied a quinary Fe-based superconductor Sr2 VFeAsO3 by the measurements of x-ray diffraction, x-ray absorption, Mössbauer spectrum, resistivity, magnetization, and specific heat. This apparently undoped oxyarsenide is shown to be self-doped via electron transfer from the V3+ ions. We observed successive magnetic transitions within the VO2 layers: an antiferromagnetic transition at 150 K followed by a weak ferromagnetic transition at 55 K. The spin orderings within the VO 2 planes are discussed based on mixed valence of V3+ and V4+.

AB - We have studied a quinary Fe-based superconductor Sr2 VFeAsO3 by the measurements of x-ray diffraction, x-ray absorption, Mössbauer spectrum, resistivity, magnetization, and specific heat. This apparently undoped oxyarsenide is shown to be self-doped via electron transfer from the V3+ ions. We observed successive magnetic transitions within the VO2 layers: an antiferromagnetic transition at 150 K followed by a weak ferromagnetic transition at 55 K. The spin orderings within the VO 2 planes are discussed based on mixed valence of V3+ and V4+.

UR - https://www.scopus.com/pages/publications/77957601390

U2 - 10.1103/PhysRevB.82.104518

DO - 10.1103/PhysRevB.82.104518

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AN - SCOPUS:77957601390

SN - 1098-0121

VL - 82

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 10

M1 - 104518

ER -

Self-doping effect and successive magnetic transitions in superconducting Sr2 VFeAsO3

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