Polymerized Complex Synthesis and the Raman Scattering of Bi2.1Sr1.9-xLaxCuO6+d.

• Inoue Atsuyoshi

  Materials and Structures Laboratory, Tokyo Institute of Technology

• Kakihara Masato

  Materials and Structures Laboratory, Tokyo Institute of Technology

• Osada Minoru

  Materials and Structures Laboratory, Tokyo Institute of Technology

• Tochihara Shinjirou

  Department of Mathematics and Physics, The National Defense Academy

• Yasuoka Hiroshi

  Department of Mathematics and Physics, The National Defense Academy

• Mazaki Hiromasa

  Department of Mathematics and Physics, The National Defense Academy

• Yashima Masatomo

  Materials and Structures Laboratory, Tokyo Institute of Technology

Bibliographic Information

Other Title

• 錯体重合法によるＢｉ２．１Ｓｒ１．９－ｘＬａｘＣｕＯ６＋ｄの合成とそのラマン散乱
• サクタイ ジュウゴウホウ ニヨル Bi2.1Sr1.9-xLaxCuO6+d

Abstract

High-purity polycrystalline samples of Bi_2.1Sr_1.9-xLa_xCuO_6+d with x=0-1 have been prepared by the polymerized complex method X-ray powder diffraction and complex magnetic susceptibility mesurements have shown that the samples are of a single-bulk Bi2201 phase without any impurity such as Bi₁₇Sr₁₆Cu₇O_y, CuO, Bi₂Sr₃Cu₂O_y, The dependence of the superconducting transition temperature T_c(onset) with increasing La content has a parabolic-like behavior with maximum T_c(onset)=16.6 K at x=0.3. We heve investigated the effect of La substitution for Sr on Raman spectra of Bi_2.1Sr_1.9-xLa_xCuO_6+d. The apical-oxygen phonon at-630cm^-1 softens by -20cm^-2 with increasing La content, when x goes from 0 to 1. This change can be interpreted in terms of the charge redistribution induced by decreasing the Cu and Bi valences with La doping.

Journal

• Journal of the Japan Society of Powder and Powder Metallurgy

  Journal of the Japan Society of Powder and Powder Metallurgy 44 (2), 137-141, 1997

  Japan Society of Powder and Powder Metallurgy

Keywords

• Bi<SUB>2.1</SUB>Sr<SUB>1.9-x</SUB>La<SUB>x</SUB>CuO<SUB>6+d</SUB> superconductor
• Polymerized complex method
• Complex magnetic susceptibility
• Raman scattering

Details

• CRID: 1390282681285651712
• NII Article ID: 10002013411
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.44.137
• ISSN: 18809014
• ISSN: 05328799
• NDL BIB ID: 4139924
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4139924
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed