ISSN:
1434-1948
Schlagwort(e):
Perovskite phases
;
Mixed conductors
;
Materials science
;
Neutron diffraction
;
X-ray diffraction
;
Chemistry
;
General Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
A new series of perovskite-type materials of general formula La1.33NaxMnxTi2-xO6 (x = 0.66, 0.55 and 0.44) was obtained and characterized. The common structure is rhombohedral (space group R3cbar) although a transition to orthorhombic (space group Ibmm) is observed between 400 and 600 K for the x = 0.66 phase. Complex impedance techniques and charge/discharge cycles show a different electrical behavior that varies from a purely electronic conductor (x = 0.66) to a mixed electronic-ionic behavior for the other phases.
Zusätzliches Material:
7 Ill.
Materialart:
Digitale Medien
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