4 papers
Unified Phase-Field Framework for Antiferroelectric, Ferroelectric and Dielectric Phases: Application to HZO Thin Films
P. Pankaj, Sandeep Sugathan, Si Joon Kim +1
Polycrystalline hafnia-based thin films exhibit mixed ferroelectric (FE), antiferroelectric (AFE), and dielectric (DE) behavior, with switching characteristics strongly influenced…
A phase field model combined with genetic algorithm for polycrystalline hafnium zirconium oxide ferroelectrics
Sandeep Sugathan, Krishnamohan Thekkepat, Soumya Bandyopadhyay +2
Ferroelectric hafnium zirconium oxide (HZO) thin films show significant promise for applications in ferroelectric random-access memory, ferroelectric field-effect transistors, and…
Effect of elastic anisotropy on phase separation in ternary alloys: A phase-field study
Sandeep Sugathan, Saswata Bhattacharya
The precipitate shape, size and distribution are crucial factors which determine the properties of several technologically important alloys. Elastic interactions between the inclus…
A phase-field study of elastic stress effects on phase separation in ternary alloys
Sandeep Sugathan, Saswata Bhattacharya
Most of the commercially important alloys are multicomponent, producing multiphase microstructures as a result of processing. When the coexisting phases are elastically coherent, t…