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Raman mode assignments of HgBa2CuO4+δ crystallites

✍ Scribed by Hye-Gyong Lee; Hye-Soo Shin; In-Sang Yang; Jae-Jun Yu; Nam H. Hur


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
349 KB
Volume
233
Category
Article
ISSN
0921-4534

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✍ Y.T. Ren; H. Chang; Q. Xiong; Y.Y. Xue; C.W. Chu 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 578 KB

We have studied as-synthesized, vacuum-annealed and high-pressure oxygen annealed HgBa2CuO4+6 (Hg-1201 ) using Raman scattering. The apical-oxygen vibrational frequencies showed a slight but systematic shift (590, 591 and 587 era-t ), in agreement with the slight change in the Hg--O bond length from