High pressure x-ray study of YBa2Cu3O7-δ
作者： Gendo Oomi , Kazuhumi Suenaga
DOI: 10.1016/0921-4526(90)90184-V
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摘要: Abstract The lattice constants of both superconducting (orthorhomic, sample I) and nonsuperconducting (tetragonal, II) YBa2Cu3O7−δ have been measured as a function pressure up to about 130 kbar at room temperature. It is found that the linear compressibility I along a-axis, Ka , nearly equals Kc but Kb larger than or . On other hand same for tetragonal II, which means compression isotropic. These results are discussed in connection with layered low dimensional compounds.
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