Raman Phonons under Hydrostatic Pressure in YBa2(Cu1-xNix)4O8.

• Payne D. J.

  Department of Physics, University of Missouri

• Guha S.

  Department of Physics, University of Missouri

• Cai Q.

  Department of Physics, University of Missouri

• Chandrasekhar M.

  Department of Physics, University of Missouri

• Chandrasekhar H. R.

  Department of Physics, University of Missouri

• Jayaram B.

  Materials Science Program, Department of Physics, University of Nebraska-Omaha

• Ulanday J.

  Materials Science Program, Department of Physics, University of Nebraska-Omaha

書誌事項

タイトル別名

• Raman Phonons under Hydrostatic Pressur

抄録

We present a study of the Raman phonons in YBa₂ (Cu_{0. 96}Ni_{0. 04}) ₄O₈ under hydrostatic pressure in the superconducting phase. In contrast to the undoped material, two modes have significantly different pressure coefficients: the O (1) chain mode shifts 35% faster while the O (2) -O (3) in phase mode shifts 33% slower than their undoped counterparts. The other modes shift in a manner similar to the undoped material. We understand this behavior in terms of the smaller compressibility in the vicinity of the chain substituted Cu (Ni) atom.

収録刊行物

• 高圧力の科学と技術

  高圧力の科学と技術 7 535-537, 1998

  日本高圧力学会

キーワード

• High T<SUB>c</SUB> superconductors
• Phonons
• Inelastic light scattering
• Hydrostatic pressure

詳細情報

• CRID: 1390282679359283584
• NII論文ID: 10002690901
• NII書誌ID: AN10452913
• DOI: 10.4131/jshpreview.7.535
• ISSN: 13481940
• ISSN: 0917639X
• NDL書誌ID: 4493973
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4493973
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可