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Structure and transport properties of superconductive Nd2CuO4−xFx

✍ Scribed by Jun Sugiyama; Michikazu Kosuge; Yoshihumi Ojima; H. Yamauchi; Shoji Tanaka

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

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✦ Synopsis

We report the TEM observation and Hall measurements of polycrystalline superconductive NdzCuO4.xFx samples. For the Nd2CuO3.eFo.2 sample with To,on=27 K and Tc,z,ro=20 K, a TEM observation shows no evidences for the existence of any types of structural modulations. For the samples with 0.1<x~0.3, the Hall coefficient (RH) is found to be negative in the temperature range between 30 and 275 K. Moreover, the temperature dependence of RH seems to be similar to that for an n-type superconductor, Ndl.ssCeo.lsCuO4.

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