A novel half-metallic transition-metal oxide with a high transition temperature

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Other Title
  • 高い磁気転移温度をもつハーフメタル遷移金属酸化物
  • 高い磁気転移温度をもつハーフメタル遷移金属酸化物 : カチオン秩序配列による磁気構造制御
  • タカイ ジキ テンイ オンド オ モツ ハーフメタル センイ キンゾク サンカブツ : カチオン チツジョ ハイレツ ニ ヨル ジキ コウゾウ セイギョ
  • Control of the spin structure by cation ordering in oxides
  • カチオン秩序配列による磁気構造制御

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Abstract

<p>We found a novel A-and-B-site-ordered perovskite-structure oxide, CaCu3Fe2Re2O12, which was synthesized under high-pressure and high-temperature conditions. The compound has fully spin-polarized conduction electrons and is ferrimagnetic up to 560 K. Thus, the oxide will be potentially useful for spintronics. The crystal, magnetic, and electronic structures of the compound are reported. The observed high-magnetic transition temperature and large magnetization are discussed in terms of competing magnetic interactions in ordered perovskite structures.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 85 (3), 212-217, 2016-03-10

    The Japan Society of Applied Physics

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