A phase retrieval algorithm for triply periodic minimal surface like structures.

ABSTRACT: A method to solve the crystallographic phase problem of materials with triply periodic minimal surface like structures, such as lyotropic liquid crystal bicontinuous cubic phases, is reported. In triply periodic minimal surface like structures, the difference between the maximum and minimum electron densities tends to be the smallest for the true phase combination among the possible combinations [Oka (2022). Acta Cryst. A78, 430-436]. Using this feature, a new iterative phase retrieval algorithm for structure determination was developed. The algorithm modifies electron densities outside the upper and lower thresholds in the iterative Fourier transformation process with fixed amplitudes for the structure factors, and efficiently searches for the structure with the smallest difference betwee

SUBMITTER: Oka T 

PROVIDER: S-EPMC9813685 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature