混合アニオン層状化合物Sr<sub>2</sub>CrFeAsO<sub>3−<i>δ</i></sub>の電子磁気相図

DOI

書誌事項

タイトル別名
  • Electronic and Magnetic Phase Diagram of Mixed Anion Layered Compound Sr<sub>2</sub>CrFeAsO<sub>3−<i>δ</i></sub>

抄録

<p>  An electronic and magnetic phase diagram of a mixed anion layered compound, Sr2CrFeAsO3−δ, is demonstrated. Sr2CrFeAsO3−δ is composed by a carrier conducting FeAs layer and carrier blocking Sr2CrO3−δ layer. Polycrystalline Sr2CrFeAsO3−δ samples were prepared by solid-state reaction. The oxygen deficiency (δ) of the samples was determined using an assumption of a linear relation between δ and lattice volume (V). The δ-V relation was based on the V of several nominal compositions of polycrystalline samples with a smaller second phase. An electronic and magnetic phase diagram of Sr2CrFeAsO3−δ that considers δ and temperature (T) was created on the basis of electrical resistivity measurements and 57Fe Mössbauer spectroscopy measurements. A magnetic Fe sublattice of Sr2CrFeAsO3−δ exhibited a stripe-type antiferromagnetic (AFM-s) phase for 0.124 ≤ δ ≤ 0.210 at T < 60 K and an internal magnetic field (Hint) distributed antiferromagnetic (AFM-DH) phase for 0.247 ≤ δ ≤ 0.256 at T < 53 K.</p>

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詳細情報 詳細情報について

  • CRID
    1390001288135511552
  • NII論文ID
    130007641623
  • DOI
    10.20819/msjtmsj.19tr306
  • ISSN
    24320471
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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