Publication:
Distinguish thermal transitions in different blocks in cuprates

dc.contributor.author Zhang, Guangqing en_US
dc.contributor.author Cheng, Chun-Chung en_US
dc.contributor.author Du, X en_US
dc.contributor.author Zhao, Yong en_US
dc.date.accessioned 2021-11-25T13:04:18Z
dc.date.available 2021-11-25T13:04:18Z
dc.date.issued 2000 en_US
dc.description.abstract Bi1.7Pb0.3Sr2Ca2Cu3O10+y was used as an example of Cuprates for our study. The subtle thermal transitions and the jumps of the parameters appear in the sample at about 300 and 700oC, respectively. The unit cell of the sample is composed of two structural blocks: perovskite and rock salt. The size of every block along c direction is about a nanometer. What should be made clear is whether the two thermal and structural changes take place in the whole cell or from different blocks. The bond lengths in the unit cell are analyzed carefully before and after two thermal and structural changes based on the results of X-ray diffraction. Careful analysis of the bond length in the samples demonstrates that the two jumps of the parameters are correlated with the two blocks. After the jump at about 300oC, the bond lengths in the rock salt block change more significant than in the perovskite block. After the jump at about 700oC, the bond lengths in the perovskite block change more significant than in the rock salt block. The change of the bond lengths clearly shows that the different thermal transitions and the jumps of the parameters take place in different blocks. en_US
dc.identifier.issn 0921-5093 en_US
dc.identifier.uri http://hdl.handle.net/1959.4/39078
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/3.0/au/ en_US
dc.source Legacy MARC en_US
dc.title Distinguish thermal transitions in different blocks in cuprates en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.accessRights.uri http://purl.org/coar/access_right/c_14cb
unsw.identifier.doiPublisher http://dx.doi.org/10.1016/S0921-5093(00)00994-1 en_US
unsw.relation.faculty Science
unsw.relation.faculty Arts Design & Architecture
unsw.relation.ispartofissue 2 en_US
unsw.relation.ispartofjournal Materials Science and Engineering A en_US
unsw.relation.ispartofpagefrompageto 232-235 en_US
unsw.relation.ispartofvolume A292 en_US
unsw.relation.originalPublicationAffiliation Zhang, Guangqing, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Cheng, Chun-Chung, Faculty of the Built Environment, UNSW en_US
unsw.relation.originalPublicationAffiliation Du, X en_US
unsw.relation.originalPublicationAffiliation Zhao, Yong, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.school School of Materials Science & Engineering *
unsw.relation.school School of Built Environment *
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