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Symmetry changes at the néel point in the high-temperature superconductor GdBa2Cu3O7-δ

✍ Scribed by K. Osuch


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
327 KB
Volume
78
Category
Article
ISSN
0038-1098

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Magnetization measurements on a polycrystal of CaLaBaCu 3 O 7Àd in high magnetic fields (20 to 50 kOe) are reported. The sample has a zero-field transition temperature T c0 77 K and a transition width of 2.0 K. The results show large fluctuation effects, which can be explained by Ginzburg-Landau flu