101 citations · 181 across the 9 of their papers we have counts for
9 papers
Temperature-doping phase diagram and endurance in Ce-doped HfO2
Amit Kumar Shah, Haidong Lu, Kawshan Hathurusingha +2
The structural and ferroelectric properties of epitaxial Hf1-xCexO2 (CHO) thin films in the ultrathin regime are investigated as a function of Ce concentration (5% <= x <= 20%) and…
Improper Ferroelectricity at the Monolayer Limit
Yilin Evan Li, Harikrishnan KP, Haidong Lu +20
Ultrathin ferroelectric films with out-of-plane polarization and high Curie temperatures are key to miniaturizing electronic devices. Most ferroelectrics employed in devices are pr…
Antiferroelectric Hafnia Down to the 2D Limit
Xin Li, Guodong Ren, Haidong Lu +16
Antiferroelectricity is a material property characterized by alternating electric dipoles spontaneously ordered in antiparallel directions. Antiferroelectrics are promising for ene…
Dual mechanisms for transient capacitance anomaly in improper ferroelectrics
Xin Li, Yu Yun, Pratyush Buragohain +6
The recent discovery of transient negative capacitance has sparked an intense debate on the role of homogeneous and inhomogeneous mechanisms in polarizations switching. In this wor…
Piezoelectricity in hafnia
Sangita Dutta, Pratyush Buragohain, Sebastjan Glinsek +7
Because of its compatibility with semiconductor-based technologies, hafnia (HfO) is today's most promising ferroelectric material for applications in electronics. Yet, knowle…
Persistent Ionic Photo-responses and Frank-Condon Mechanism in Proton-transfer Ferroelectrics
Xuanyuan Jiang, Xiao Wang, Pratyush Buragohain +8
Photoexcitation is well-known to trigger electronic metastable states and lead to phenomena like long-lived photoluminescence and photoconductivity. In contrast, persistent photo-r…
On the persistence of polar domains in ultrathin ferroelectric capacitors
Pavlo Zubko, Haidong Lu, Chung-Wung Bark +5
The instability of ferroelectric ordering in ultra-thin films is one of the most important fundamental issues pertaining realization of a number of electronic devices with enhanced…
Room Temperature Ferroelectricity in Continuous Croconic Acid Thin Films
Xuanyuan Jiang, Haidong Lu, Yuewei Yin +10
Ferroelectricity at room temperature has been demonstrated in nanometer-thin quasi 2D croconic acid thin films, by the polarization hysteresis loop measurements in macroscopic capa…
Ultrathin BaTiO3 templates for multiferroic nanostructures
Xumin Chen, Seolun Yang, Ji-Hyun Kim +11
Structural, electronic and dielectric properties of high-quality ultrathin BaTiO3 films are investigated. The films, which are grown by ozone-assisted molecular beam epitaxy on Nb-…