51 citations · 139 across the 9 of their papers we have counts for
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A CMOS-compatible morphotropic phase boundary
Alireza Kashir, Hyunsang Hwang
Morphotropic phase boundaries (MPBs) show substantial piezoelectric and dielectric responses, which have practical applications. The predicted existence of MPB in HfO2-ZrO2 solid s…
Ferroelectric and dielectric properties of Hf0.5Zr0.5O2 thin film near morphotropic phase boundary
Alireza Kashir, Hyunsang Hwang
Recently, based on the phase-field modeling, it was predicted that Hf1-xZrxO2 (HZO) exhibits the morphotropic phase boundary (MPB) in its compositional phase diagram. Here, we inve…
Large remnant polarization in a wake-up free Hf0.5Zr0.5O2 ferroelectric film
Alireza Kashir, Hyung Woo Kim, Seungyeol Oh +1
A wake-up free Hf0.5Zr0.5O2 (HZO) ferroelectric film with the highest remnant polarization (Pr) value to-date was achieved through tuning of the ozone pulse duration, the annealing…
Defect engineering for control of wake-up effect in HfO2-based ferroelectrics
Alireza Kashir, Seungyeol Oh, Hyunsang Hwang
Wake-up effect is still an obstacle in the commercialization of hafnia-based ferroelectric thin films. In this work, we investigate the effect of defects, controlled by ozone dosag…
Strain-induced increase of dielectric constant in EuO thin film
Alireza Kashir, Hyeon-Woo Jeong, Woochan Jung +2
Recently, lattice dynamics of the highly strained europium monoxide, as a promising candidate for strong ferroelectric-ferromagnet material, applied in the next-generation storage…
Dielectric properties of strained NiO thin films
Alireza Kashir, Hyeon-Woo Jeong, Gil-ho Lee +2
The dielectric properties of NiO thin films grown by pulsed laser deposition have been studied as a function of strain at temperature from 10 to 300 K. Above 150 K, the contributio…
Pulsed Laser Deposition of Rocksalt Magnetic Binary Oxides
Alireza Kashir, Hyeon-Woo Jeong, Gil-ho Lee +2
Here we systematically explore the use of pulsed laser deposition technique (PLD) to grow three basic oxides that have rocksalt structure but different chemical stability in the am…