Structure Field Map of M2M'O4 Compounds (IMAGE) Tokyo Institute of Technology Caption The structure field map shows 209 different compositions of M2M'O4 compounds, with the red hatched area representing the CaFe2O4-type structure field. The newly synthesized compound SrYbInO4 is shown within the CaFe2O4-type structure field. Credit American Chemical Society Usage Restrictions Copyright indication is required. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.