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High pressure synthesis of a new superconductor Sr2CuO2+δCl2−y induced by “apical oxygen doping”

✍ Scribed by Q.Q. Liu; X.M. Qin; Y. Yu; F.Y. Li; C. Dong; C.Q. Jin

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
212 KB
Volume
420
Category
Article
ISSN
0921-4534

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By measuring O 1s and Cu 2p 3/2 absorption edges of Sr 2 CuO 2+d Cl 2Ày using orientation-dependent high-energy electron energy-loss spectroscopy, the changes of the unoccupied electronic structure close to the Fermi level induced by stoichiometry variations have been explored. An interesting hole r