%ARitz, Ethan%ABenedek, Nicole%BJournal Name: Physical Review Letters; Journal Volume: 121; Journal Issue: 25; Related Information: CHORUS Timestamp: 2018-12-19 13:05:46 %D2018%IAmerican Physical Society %JJournal Name: Physical Review Letters; Journal Volume: 121; Journal Issue: 25; Related Information: CHORUS Timestamp: 2018-12-19 13:05:46 %K %MOSTI ID: 10081834 %PMedium: X %TInterplay between Phonons and Anisotropic Elasticity Drives Negative Thermal Expansion in PbTiO3 %XNot Available %0Journal Article