80 citations · 237 across the 10 of their papers we have counts for
11 papers
How semiconducting are ferroelectrics: The fundamental, optical and transport gaps of NaBiTiO-BaTiO and NaNbO
Pengcheng Hu, Nicole Bein, Chinmay Chandan Parhi +7
The energy gap is a fundamental property of materials, directly related to their optical and electronic properties. The energy gap of ferroelectric compounds and its adjustment by…
Chemical heterogeneity at conducting ferroelectric domain walls
Kasper A. Hunnestad, Guo-Dong Zhao, Mao-Hua Zhang +7
Natural interfaces in ferroic oxides have developed into versatile playgrounds for studying electronic correlation effects in 2D systems. The microscopic origin of the emergent loc…
Pressure-control of non-ferroelastic ferroelectric domains in ErMnO3
O. W. Sandvik, A. M. Müller, H. W. Ånes +7
Mechanical pressure controls the structural, electric, and magnetic order in solid state systems, allowing to tailor and improve their physical properties. A well-established examp…
Electric-field-induced non-ergodic relaxor to ferroelectric transition in BiFeO3-xSrTiO3 ceramics
Leonardo Oliveira, Jeppe Ormstrup, Marta Majkut +4
While BiFeO3-based solid solutions show great promise for applications in energy conversion and storage, realizing this promise necessitates understanding the structure-property re…
Unveiling AC electronic properties at ferroelectric domain walls
Jan Schultheiß, Tadej Rojac, Dennis Meier
Ferroelectric domain walls exhibit a range of interesting electrical properties and are now widely recognized as functional two-dimensional systems for the development of next-gene…
Dielectric and electro-mechanic nonlinearities in perovskite oxide ferroelectrics, relaxors and relaxor ferroelectrics
Lukas M. Riemer, Li Jin, Hana Uršič +3
The polarization and strain response of ferroelectric materials at fields below the macroscopic coercive field is of a paramount importance for the operation of many electronic dev…
Atomic scale symmetry and polar nanoclusters in the paraelectric phase of ferroelectric materials
Andreja Bencan, Emad Oveisi, Sina Hashemizadeh +6
The nature of the "forbidden" local- and long-range polar order in nominally nonpolar paraelectric phases of ferroelectric materials has been an open question since the discovery o…
Domain wall-grain boundary interactions in polycrystalline Pb(Zr0.7Ti0.3)O3 piezoceramics
J. Schultheiß, S. Checchia, H. Uršič +5
Interactions between grain boundaries and domain walls were extensively studied in ferroelectric films and bicrystals. This knowledge, however, has not been transferred to polycrys…
Role of charged defects on the electrical and electro-mechanical properties of rhombohedral Pb(Zr,Ti)O3 with oxygen octahedra tilts
Tadej Rojac, Silvo Drnovsek, Andreja Bencan +2
Oxygen octahedra tilting is a common structural phenomenon in perovskites and has been subject of intensive studies, particularly in rhombohedral Pb(Zr,Ti)O3 (PZT). Early reports s…
Piezoelectric nonlinearity and frequency dispersion of the direct piezoelectric response of BiFeO3 ceramics
Tadej Rojac, Andreja Bencan, Goran Drazic +2
We report on the frequency and stress dependence of the direct piezoelectric d33 coefficient in BiFeO3 ceramics. The measurements reveal considerable piezoelectric nonlinearity, i.…
Large electric-field induced strain in BiFeO3 ceramics
Tadej Rojac, Marija Kosec, Dragan Damjanovic
Large bipolar strain of up to 0.36% (peak-to-peak value) was measured in BiFeO3 ceramics at low frequency (0.1 Hz) and large amplitude (140 kV/cm) of the driving field. This strain…