Blar i NTNU Open på forfatter "Ræder, Trygve Magnus"
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Anisotropic in-plane dielectric and ferroelectric properties of tensile-strained BaTiO3 films with three different crystallographic orientations
Ræder, Trygve Magnus; Holstad, Theodor Secanell; Nylund, Inger-Emma; Glaum, Julia; Einarsrud, Mari-Ann; Meier, Dennis; Grande, Tor (Peer reviewed; Journal article, 2021)Ferroelectric properties of films can be tailored by strain engineering, but a wider space for property engineering can be opened by including crystal anisotropy. Here, we demonstrate a huge anisotropy in the dielectric ... -
Application of a long short-term memory for deconvoluting conductance contributions at charged ferroelectric domain walls
Holstad, Theodor Secanell; Ræder, Trygve Magnus; Evans, Donald; Småbråten, Didrik Rene; Krohns, Stephan; Schaab, Jakob; Yan, Zewu; Bourret, Edith; Helvoort, Antonius T. J. van; Grande, Tor; Selbach, Sverre Magnus; Agar, Joshua; Meier, Dennis Gerhard (Peer reviewed; Journal article, 2020)Ferroelectric domain walls are promising quasi-2D structures that can be leveraged for miniaturization of electronics components and new mechanisms to control electronic signals at the nanoscale. Despite the significant ... -
Controlling Phase Purity and Texture of K0.5Na0.5NbO3 Thin Films by Aqueous Chemical Solution Deposition
Gaukås, Nikolai Helth; Dale, Silje Marie; Ræder, Trygve Magnus; Toresen, Andreas; Holmestad, Randi; Glaum, Julia; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2019)Aqueous chemical solution deposition (CSD) of lead-free ferroelectric K0.5Na0.5NbO3 (KNN) thin films has a great potential for cost-effective and environmentally friendly components in microelectronics. Phase purity of KNN ... -
Enhanced in-plane ferroelectricity in BaTiO3 thin films fabricated by aqueous chemical solution deposition
Ræder, Trygve Magnus; Bakken, Kristine; Glaum, Julia; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2018)Ferroelectric BaTiO3 is widely used in capacitors, but the low Curie temperature limits a further use of BaTiO3. In this work we present an aqueous chemical solution deposition (CSD) route for BaTiO3 thin films, demonstrating ... -
Epitaxial (100), (110), and (111) BaTiO3 films on SrTiO3 substrates — A transmission electron microscopy study
Nylund, Inger-Emma; Ræder, Trygve Magnus; Vullum, Per Erik; Grande, Tor (Peer reviewed; Journal article, 2021)Chemical solution deposition (CSD) is a versatile method to fabricate oxide films. Here, the structure and local variations in the chemical composition of BaTiO3 (BTO) films prepared by CSD on (100), (110), and (111) SrTiO3 ... -
High Velocity, Low-Voltage Collective In-Plane Switching in (100) BaTiO3 Thin Films
Ræder, Trygve Magnus; Qin, Shuyu; Vasudevan, Rama K.; Grande, Tor; Agar, Joshua; Zachman, Michael J. (Journal article; Peer reviewed, 2022) -
In-plane Ferroelectricity in Barium Titanate Films
Ræder, Trygve Magnus (Doctoral theses at NTNU;2020:201, Doctoral thesis, 2020)Ferroelectric materials are irreplaceable materials in electronics used everywhere in the modern society. The ferroelectric perovskites are the most widely used class of ferroelectric materials, and the use is dominated ... -
Self-Poling and Ageing in PZT Thin Films With Interdigitated Electrodes - Work done at Laboratoire de Céramique (LC), EPFL
Ræder, Trygve Magnus (Master thesis, 2015)This work details advances in thin-film lead zirconate titanate (PZT) devices with interdigitated electrodes (IDEs). They are interesting for energy harvesting applications, as they can provide small amounts of electrical ... -
Structural Disorder and Coherence across the Phase Transitions of Lead-Free Piezoelectric Bi0.5K0.5TiO3
Jiang, Bo; Ræder, Trygve Magnus; Lin, De-Ye; Grande, Tor; Selbach, Sverre Magnus (Journal article; Peer reviewed, 2018)Relaxor ferroelectrics exhibit superior properties for converting mechanical energy into electrical energy, and vice versa, but the structural disorder hampers an understanding of structure–property relationships and impedes ... -
A unified approach for the calculation of in-plane dielectric constant of films with interdigitated electrodes
Ræder, Trygve Magnus; Hanke, Ulrik; Halvorsen, Einar; Grande, Tor (Peer reviewed; Journal article, 2020)Interdigitated electrodes (IDEs) on dielectric films is an important electrode design in electrical components such as transducers and sensors. Further development and use of IDEs for characterization of the in-plane ...