Blar i NTNU Open på forfatter "Rojac, Tadej"
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Magnetic contributions in multiferroic gadolinium modified bismuth ferrite ceramics
Walker, Julian; Mirjanic, Anja; Sadl, Uros; Condurache, Oana Andreea; Bencan, Andreja; Rojac, Tadej; Grigoras, Marian; Uršič, Hana (Peer reviewed; Journal article, 2020)Bi0.88Gd0.12FeO3 multiferroics are of interest for next-generation electronics and are shown with a remnant magnetization 0.2 emu·g−1, coercive field 8 kOe, Curie temperature 370 °C and magnetization of 0.7 emu·g−1 at ... -
Poling-induced inverse time-dependent microstrain mechanisms and post-poling relaxation in bismuth ferrite
Liu, Lisha; Rojac, Tadej; Kimpton, Justin; Walker, Julian; Makarovic, Maja; Li, Jing-Feng; Daniels, John E. (Peer reviewed; Journal article, 2020)Domain-wall dynamics under strong, super-coercive electric fields in polycrystalline bismuth ferrite (BiFeO3) are not well established due to the experimental difficulties in processing high phase purity perovskite with ... -
Pressure Control of Nonferroelastic Ferroelectric Domains in ErMnO<inf>3</inf>
Sandvik, Olav W.; Müller, Aaron Merlin; Ånes, Håkon W.; Zahn, Manuel; He, Jiali; Feibig, Manfred; Lottermoser, Thomas; Rojac, Tadej; Meier, Dennis; Schultheiß, Jan (Journal article; Peer reviewed, 2023)Mechanical pressure controls the structural, electric, and magnetic order in solid-state systems, allowing tailoring of their physical properties. A well-established example is ferroelastic ferroelectrics, where the coupling ... -
Super-coercive electric field hysteresis in ferroelectric plastic crystal tetramethylammonium bromotrichloroferrate(III)
Walker, Julian; Miranti, Rany; Skjærvø, Susanne Linn; Rojac, Tadej; Grande, Tor; Einarsrud, Mari-Ann (Peer reviewed; Journal article, 2020)Ionic plastic crystals are part of an emerging class of hybrid organic–inorganic ferroelectrics. The combination of low dielectric constants (<20), strong piezoelectric coefficients (>100 pC N−1) and low temperature synthesis ... -
Unveiling AC electronic properties at ferroelectric domain walls
Schultheiss, Jan; Rojac, Tadej; Meier, Dennis Gerhard (Journal article; Peer reviewed, 2021)