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http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/7874Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.creator | Luz M. S. da | - |
| dc.creator | Santos C. A. M. dos | - |
| dc.creator | Machado A. J. S. | - |
| dc.creator | Ferreira B. | - |
| dc.date | 2002 | - |
| dc.date.accessioned | 2013-06-01T09:35:53Z | - |
| dc.date.available | 2013-06-01T09:35:53Z | - |
| dc.date.issued | 2013-06-01 | - |
| dc.identifier | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000400012 | - |
| dc.identifier | http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2002&volume=32&issue=3&spage=744 | - |
| dc.identifier.uri | http://koha.mediu.edu.my:8181/jspui/handle/123456789/7874 | - |
| dc.description | This work presents a study of structural and magnetic properties of the Ba2Cu3O4Cl2 (Ba2342) compound. Doped samples with K or Sr in the Ba site and Zn or Mg in the Cu site of the Ba2342 were prepared using a solid state diffusion method. They were characterized by X-ray powder diffractometry, scanning electron microscopy and dc-magnetization. Samples with Ba2342 composition presented tetragonal structure of the I4/mmm space group when heat-treated at 750ºC. A structural transition was observed when the samples were doped with Zn or Mg or heat-treated at 700ºC. dc-Magnetization measurements performed in SQUID showed the existence of diamagnetic signal. A difference of the magnetic moments measured at zero field cooled (ZFC) and field-cooled (FC) procedures was observed suggesting the existence of localized superconductivity in this oxychloride system. | - |
| dc.publisher | Sociedade Brasileira de Física | - |
| dc.source | Brazilian Journal of Physics | - |
| dc.title | Diamagnetism and structural transition in the Ba2Cu3O4Cl2 compound | - |
| Appears in Collections: | Physics and Astronomy | |
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