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Thermal behavior of positron lifetime in metal substituted oxide superconductors YBa2(Cu1−xMx)3O7−y (M = Fe,Ni)

✍ Scribed by Shoji Ishibashi; Ryoichi Yamamoto; Masao Doyama; Takehiko Matsumoto


Book ID
116018047
Publisher
Elsevier Science
Year
1990
Weight
478 KB
Volume
164-165
Category
Article
ISSN
0022-5088

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The superconducting property of YBa2(CUl\_xHx)307 {H=Zn and Ni) has been investigated by 63Cu NQR and NMR techniques. In case of Zn(3d I0) doped into CuO 2, the residual spin Knight shift of 63Cu increases appreciably with increasing concentration. Correspondingly,TIT=const. law holds far below Tc,