Final report for period of July 1, 1954 to March 31, 1955. Summary report for period of February 1, 1953 to March 31, 1955

摘要

The purpose of the present investigation is to determine by X-ray analysis the structure of KH2PO4 at temperatures just above and just below the Curie point. Some measurable changes in interatomic distances were to be expected between the structure as determined by West at room temperature and that just above the transition point, and these could be expected to provide insight into the nature of the transition. The structure just above the transition point affords information on temperature corrections for the atomic scattering curves in this temp¬erature range, and is preferable to the room-temperature structure for deductions of the mechanism of the transition