Direct measurement of triaxial strain fields around ferroelectric domains using x-ray microdiffraction

Finansman

R. C. Rogan is supported by the Multidisciplinary University Research Initiative at Caltech on Engineering Microstructural Complexity in Ferroelectric Devices (Army Research Office grant no. DAAD19-01-1-0517). E. Üstündag is partially funded by the National Science Foundation (CAREER grant no. DMR-9985264). The Advanced Light Source is supported by Office of Basic Energy Sciences, the US Department ofEnergy under contract no.DE-AC03-76SF00098.The BaTiO3specimen was provided by G. Ravichandran from the Caltech Corporation. Insightful discussions with K. Bhattacharya and W. Zhang are gratefully acknowledged. Correspondence and requests for materials should be addressed to E.Ü.