Orthorhombic to tetragonal phase transition and superconductivity in the Ba2Cu3O4Cl2 compound

• Autorzy: da Luz M.S. , dos Santos C.A.M. , Machado J.S.
• Języki publikacji: EN

Abstrakty

EN

The orthorhombic to tetragonal phase transition in Ba2Cu3O4Cl2 has been investigated. This transition was observed by X-ray powder diffractometry carried out in samples heat treated between 700 and 750 °C. Results of X-ray diffractograms simulation confirm the phase transition. dc-Magnetization measurements performed in SQUID showed the existence of a signal due to diamagnetism. The results suggest the existence of localized superconductivity and explain the different magnetic properties reported in the literature for the Ba2Cu3O4Cl2 compound.

Słowa kluczowe

EN

oxychloride; structural transition; diamagnetism

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2008
• Tom: Vol. 26, No. 3
• Strony: 585--590
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

da Luz M.S.

autor

dos Santos C.A.M.

autor

Machado J.S.

• Escola de Engenharia de Lorena – USP, P.O. Box 116, Lorena – SP 12606-810, Brazil,

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