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La2−xPbxCuO4±σ, a 15 K superconductor with a pseudotetragonal K2NiF4 structure

✍ Scribed by A. Maignan; C. Michel; M. Hervieu; J. Provost; D. Groult; B. Raveau


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
339 KB
Volume
191
Category
Article
ISSN
0921-4534

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Evolution of the Structure of the K2NiF4
✍ J.E. Millburn; M.A. Green; D.A. Neumann; M.J. Rosseinsky 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 398 KB

The structural properties of the La 2؊x Sr x NiO 4؉ solid solution have been investigated by high resolution powder neutron di4raction as a function of Sr dopant concentration. There is a signi5cant change in the evolution of the shape of the NiO 6 octahedron beyond x ‫؍‬ 0.6, where previous transpo