Neutron Structural analysis of La_1-<i>x</i>Sr_<i>x</i>MnO₃–Variation of One-Electron Bandwidth<i>W</i>with Hole Doping–

• Xu Sheng

  Department of Crystalline Materials Science, Nagoya University

• Moritomo Yutaka

  Department of Applied physics, Nagoya University PRESTO, JST

• Ohoyama Kenji

  Institute for Materials Research, Tohoku University

• Nakamura Arao

  Department of Applied physics, Nagoya University

書誌事項

タイトル別名

• Neutron Structural analysis of La1-xSrxMnO3. Variation of One-Electron Bandwidth W with Hole Doping.

抄録

We have performed neutron powder diffraction measurements for La_1−xSr_xMnO₃ (x=0.00–0.20) at room temperature. We have found that the crystal structure is orthorhombic (Pbnm, Z=4; O) at x≤0.14 and rhombohedral (R\\bar3c, Z=2; R) at x≥0.18, respectively. At this structural phase transition, the averaged Mn–O–Mn bond angle ⟨θ⟩ discontinuously increases from 160.8° at x=0.14 to 163.5° at x=0.18. We have estimated relative variation of the one-electron bandwidth W of the e_g-band, and discussed the insulator-metal behavior induced by hole doping.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 72 (3), 709-712, 2003

  一般社団法人 日本物理学会

キーワード

• neutron powder diffraction
• Rietveld structural analysis

詳細情報

• CRID: 1390001204182740224
• NII論文ID: 210000104698
• NII論文ID: 110001974281
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.72.709
• BIBCODE: 2003JPSJ...72..709X
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 6479830
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6479830
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.72.709
• 本文言語コード: en
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