5 papers
Role of Oxygen Vacancies in Stabilizing the Orthorhombic Phases of Hf0.5Zr0.5O2 Nanoparticles
Yuriy O. Zagorodniy, Eugene A. Eliseev, Valentin V. Laguta +13
In this work we study the stabilization of the orthorhombic phases in small Hf0.5Zr0.5O2 nanoparticles (average size ~ 7 nm) annealed under different oxygen partial pressures. Conc…
Colossal dielectric response of HfxZr1-xO2 nanoparticles
Oleksandr S. Pylypchuk, Victor V. Vainberg, Vladimir N. Poroshin +10
We reveal a colossal dielectric response of small (5 - 10 nm) oxygen-deficient HfxZr1-xO2 nanoparticles (x = 1 - 0.4), prepared by the solid-state organonitrate synthesis. The effe…
Resistive switching and charge accumulation in Hf0.5Zr0.5O2 nanoparticles
Oleksandr S. Pylypchuk, Ihor V. Fesych, Victor V. Vainberg +13
We revealed the resistive switching, negative differential resistance and charge accumulation effects in Hf0.5Zr0.5O2 nanopowders sintered by the auto-combustion sol-gel method and…
The origin of the ferroelectric-like orthorhombic phase in oxygen-deficient HfO2-y nanoparticles
Eugene A. Eliseev, Iryna V. Kondakova, Yuri O. Zagorodniy +6
In this work we established the relationship between the crystalline structure symmetry, point defects and possible appearance of the ferroelectric-like polarization in HfO2-y nano…
Reentrant polar phase induced by the ferro-ionic coupling in BiSmFeO nanoparticles
Anna N. Morozovska, Eugene A. Eliseev, Igor V. Fesych +9
Using the model of four sublattices, the Landau-Ginzburg-Devonshire-Kittel phenomenological approach and the Stephenson-Highland ionic adsorption model for the description of coupl…