Elastic constant anomalies in sinter-forged high-Tc superconductor YBa2Cu3O7 − δ

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DOIResolve DOI: http://doi.org/10.1016/0022-5088(89)90522-5
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TypeArticle
Journal titleJournal of the Less Common Metals
ISSN0022-5088
Volume149
Pages451454; # of pages: 4
AbstractThe ultrasound velocity in the sinter-forged YBa2Cu3O7 − δ superconductor was measured and the results showed evident anomalies as well as anisotropies. Both longitudinal and shear wave velocity along the c axis (the forging axis) showed a distinct thermal hysteresis from 65 K to 260 K. The velocity change Δv/v from room temperature to 4 K was 1.5%. The sound velocity along the “basal plane” reached a maximum around 160 K. No distinct thermal hysteresis was observed. Δv/v from room temperature to 4 K was 1%. All of these velocities were measured while sweeping the magnetic field up to 9 T at fixed temperatures of 4 K and 86 K respectively. No velocity change was observed. The shear wave velocity behaved similarly at 9 T during the thermal cycling between room temperature and 4 K.
Publication date
LanguageEnglish
Peer reviewedYes
NPARC number21273074
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Record identifier2aafd8e9-a1b6-4cc2-845d-b4390dac4d94
Record created2014-12-11
Record modified2016-05-09
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