A nanoscale continuous transition from the monoclinic to ferroelectric orthorhombic phase inside HfO<sub>2</sub> nanocrystals stabilized by HfO<sub>2</sub> capping and self-controlled Ge doping
Cătălin Palade, Ana‐Maria Lepadatu, A. Slav, Ovidiu Cojocaru, A. Iuga, Valentin‐Adrian Maraloiu, A. Moldovan, M. Dinescu, V. S. Teodorescu, T. Stoïca, Magdalena Lidia Ciurea
Abstract
A transition from the monoclinic to ferroelectric orthorhombic phase, takes place within a region of few atomic layers of single HfO 2 crystals. Atomic calculations show high stability of the ferroelectric orthorhombic phase.
Topics & Concepts
Monoclinic crystal systemMaterials scienceOrthorhombic crystal systemFerroelectricityNanocrystalDopingPhase transitionNanoscopic scalePhase (matter)CrystallographyCondensed matter physicsNanotechnologyCrystal structureOptoelectronicsDielectricChemistryPhysicsOrganic chemistryFerroelectric and Negative Capacitance DevicesSemiconductor materials and devicesMXene and MAX Phase Materials