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Antiferroelectricity in ZrO2 and Ferroelectricity in Zr, Al, La Doped HfO2 Nanoparticles
2020
Advances in Materials Physics and Chemistry
The dependence of the polarization P in Hf 1-x Zr x O 2 nanoparticles on electric field, dopant concentration x, size and temperature are studied using the transverse Ising model and the Green's function method. Pure ZrO 2 shows at high electric fields an antiferroelectric behavior. Pure HfO 2 is a linear dielectric in the monoclinic phase. With increasing ZrO 2 content the ( ) P E of HZO shows a ferroelectric behavior. The composition dependence x of the remanent polarization ( ) r P x has a
doi:10.4236/ampc.2020.102003
fatcat:tu4hatqxxrhgrgxh6brovy5w7e