235 citations · 897 across the 15 of their papers we have counts for
11 papers · 1 filter
Ionic control over ferroelectricity in 2D layered van der Waals capacitors
Sabine M. Neumayer, Mengwei Si, Junkang Li +7
The van der Waals layered material CuInP2S6 features interesting functional behavior, including the existence of four uniaxial polarization states, polarization reversal against th…
Unique features of polarization in ferroelectric ionic conductors
Andrew O'Hara, Nina Balke, Sokrates T. Pantelides
Ferroelectrics that are also ionic conductors offer possibilities for novel applications with high tunability, especially if the same atomic species causes both phenomena. In parti…
Fast Scanning Probe Microscopy via Machine Learning: Non-rectangular scans with compressed sensing and Gaussian process optimization
Kyle P. Kelley, Maxim Ziatdinov, Liam Collins +5
Fast scanning probe microscopy enabled via machine learning allows for a broad range of nanoscale, temporally resolved physics to be uncovered. However, such examples for functiona…
Giant negative electrostriction and dielectric tunability in a van der Waals layered ferroelectric
Sabine M. Neumayer, Eugene A. Eliseev, Michael A. Susner +11
The interest in ferroelectric van der Waals crystals arises from the potential to realize ultrathin ferroic systems owing to the reduced surface energy of these materials and the l…
Ferroelectric or non-ferroelectric: why so many materials exhibit ferroelectricity on the nanoscale
Rama K. Vasudevan, Nina Balke, Peter Maksymovych +2
Ferroelectric materials have remained one of the foci of condensed matter physics and materials science for over 50 years. In the last 20 years, the development of voltage-modulate…
Quantification of surface displacements and electromechanical phenomena via dynamic atomic force microscopy
Nina Balke, Stephen Jesse, Pu Yu +3
Detection of dynamic surface displacements associated with local changes in material strain provides access to a number of phenomena and material properties. Contact resonance-enha…
Electrostrictive and electrostatic responses in contact mode voltage modulated Scanning Probe Microscopies
Eugene A. Eliseev, Anna N. Morozovska, Anton V. Ievlev +4
Electromechanical response of solids underpins image formation mechanism of several scanning probe microscopy techniques including the piezoresponse force microscopy (PFM) and elec…
Unit cell orientation of tetragonal-like BiFeO thin films grown on highly miscut LaAlO substrates
C. Beekman, W. Siemons, T. Z. Ward +7
Synchrotron and lab-scale x-ray diffraction shows that tetragonal-like T'-BiFeO3 films on miscut LaAlO3 substrates (miscut < 5 deg) exhibit (00l)-planes tilted away from those of t…
Room-temperature multiferroic hexagonal LuFeO films
Wenbin Wang, Jun Zhao, Wenbo Wang +15
The crystal and magnetic structures of single-crystalline hexagonal LuFeO films have been studied using x-ray, electron and neutron diffraction methods. The polar structure of…
Watching Domains Grow: In-situ studies of polarization switching by combined Scanning Probe and Scanning Transmission Electron Microscopy
Hyejung Chang, Sergei V. Kalinin, Seungyeul Yang +9
Ferroelectric domain nucleation and growth in multiferroic BiFeO3 films is observed directly by applying a local electric field with a conductive tip inside a scanning transmission…
Local probing of ionic diffusion by electrochemical strain microscopy: spatial resolution and signal formation mechanisms
A. N. Morozovska, E. A. Eliseev, N. Balke +1
Electrochemical insertion-deintercalation reactions are typically associated with significant change of molar volume of the host compound. This strong coupling between ionic curren…