A structure anomaly in YBCO and PrBCO polycrystals Zhang, Hua en_US Zhao, Yong en_US Feng, Q en_US Wang, S.G. en_US Ritter, F en_US Assmus, W en_US 2021-11-25T12:58:59Z 2021-11-25T12:58:59Z 1996 en_US
dc.description.abstract The elaborated and well characterised YBa2Cu3O7−x and PrBa2Cu3O7−x polycrystals were studied by means of differential scanning calorimetry and thermogravimetry in different atmospheres. The YBa2Cu3O7−x polycrystals were also studied by high temperature x-ray diffraction. It is found that at about 300 °C the polycrystal sample of the YBa2Cu3O7−x shows a endothermal anomaly and a weight loss. But the sample of the PrBa2Cu3O7−x shows a completely opposite behaviour, namely, an exothermal anomaly and an increase of weight. High temperature x-ray diffraction demonstrates that the lattice parameters of the YBa2Cu3O7−x jump remarkably at about 300 °C. Comparing the behaviours of the YBa2Cu3O7−x and the PrBa2Cu3O7−x at about 300 °C, an opposite behaviour of the superconductors and the semiconductors is observed. We try to attribute this different behaviour to an unknown phase transition and a thermal instability, and believe this result may be of importance to understand the different properties between the superconducting and the semiconducting samples. en_US
dc.identifier.issn 0038-1098 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title A structure anomaly in YBCO and PrBCO polycrystals en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Science
unsw.relation.ispartofissue 2 en_US
unsw.relation.ispartofjournal Solid State Communications en_US
unsw.relation.ispartofpagefrompageto 149-151 en_US
unsw.relation.ispartofvolume 97 en_US
unsw.relation.originalPublicationAffiliation Zhang, Hua, Chemistry, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Zhao, Yong, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Feng, Q en_US
unsw.relation.originalPublicationAffiliation Wang, S.G. en_US
unsw.relation.originalPublicationAffiliation Ritter, F en_US
unsw.relation.originalPublicationAffiliation Assmus, W en_US School of Chemistry * School of Materials Science & Engineering *
Resource type