Orthorhombic to tetragonal phase transition and superconductivity in the Ba2Cu3O4Cl2 compound
M. S. da Luz, C. A. M. dos Santos, B. Ferreira, and A. J. S. Machado
TL;DR
This study investigates the structural phase transition from orthorhombic to tetragonal in Ba2Cu3O4Cl2 and explores its potential superconductivity, using X-ray diffraction and magnetization measurements to analyze the material's properties.
Contribution
It provides new insights into the phase transition and possible superconductivity in Ba2Cu3O4Cl2, linking structural changes to magnetic behavior.
Findings
Confirmed orthorhombic to tetragonal phase transition via X-ray diffraction.
Detected diamagnetism signals indicating localized superconductivity.
Explained magnetic property variations reported in literature.
Abstract
In this work we have investigated the orthorhombic to tetragonal phase transition in the Ba2Cu3O4Cl2 compound. This transition was observed by X-ray powder diffractometry carried out in samples heat treated between 700 and 750OC and also in samples with Ba2ZnCu2O4Cl2 composition. Results of X-ray diffractograms simulation confirm the phase transition. dc-Magnetization measurements performed in SQUID showed the existence of diamagnetism signal. The results suggest the existence of localized superconductivity and can explain the different magnetic properties reported in literature for the Ba2Cu3O4Cl2 compound.
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Taxonomy
TopicsPhysics of Superconductivity and Magnetism · Advanced Condensed Matter Physics · Magnetic and transport properties of perovskites and related materials