What is mean by K2NiF4 type structure?

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Juri Barthel

The crystal structure of a K2NiF4-type oxides, such as LaSrAlO4 and Sr2TiO4, consists of an alternate stacking of rock-salt AO- and perovskite ABO3-layers. It can also be described as a Ruddelsden-Popper phase An-1A’2BnO3n+1 with n=1.

Gislayllson Dias dos Santos Souza

Where can I found the CIF file of K2NiF4?

Thomas Walther

try the ICSD database at

https://cds.dl.ac.uk/cds/datasets/crys/icsd/llicsd.html