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Oxygen- and Ca-concentration dependence of Cu-NQR/NMR in the antiferromagnetic and the superconducting Pb2Sr2Y1−xCaxCu3O8+y

✍ Scribed by Osamu Okada; Toshiyuki Oashi; Ken-ichi Kumagai; Takashi Noji; Yoji Koike; Yoshitami Saito

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
147 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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✦ Synopsis

Antiferromagnetic nuclear magnetic resonance (AFNMR) of the Cu(2) site and the Cu-NQR of the Cu(1) site are investigated as a function of excess oxygen, y, in Pb2Sr2(Yl_xCa,)CuaO~+ ~. We confirm the re-appearance of the antiferromagnetic order of the Cu(2) moments and The ~h~n~e of the valence of the Cu(1) site with hole-doping introduced by extra oxygen in the superconducting Pb2Sr2(Yo.5Cao.5)Cu308+y-

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