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Energy gap distribution on polycrystalline HgBa2CuO4+δobserved by scanning tunneling spectroscopy

✍ Scribed by P. Jess; U. Hubler; H. P. Lang; H. -J. Güntherodt; K. Lüders; E. Antipov


Book ID
112782085
Publisher
Springer
Year
1996
Tongue
English
Weight
156 KB
Volume
46
Category
Article
ISSN
0011-4626

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Gap distribution in overdoped La2−xSrxCu
✍ T. Kato; T. Noguchi; R. Saito; T. Machida; H. Sakata 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 146 KB

Low-temperature scanning tunneling spectroscopy on the highly overdoped La 1.78 Sr 0.22 CuO 4 (T c = 27 K) single crystal reveals gap inhomogeneity at 4.2 K. The energy gap D observed in the tunneling spectra distributes around 7 meV: it ranges from 4 to 20 meV. The spectra with smaller D (4-10 meV)