Commensurate and Incommensurate Phases in the SystemA4A′Ir2O9(A=Sr, Ba;A′=Cu, Zn)
The crystal structure of Sr4CuIr2O9is very sensitive to the conditions of synthesis. Prolonged heating of a commensurate trigonal sample prepared at 1120°C leads to the adoption of an incommensurate structure which can be regarded as a composite of two substructures having common unit cell parameter...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1998
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