Article list
Our colleague Dr. Enric Pardo recently published a chapter in a book devoted to Numerical Modeling of Superconducting Applications, where in a chapter devoted to electromagnetic modeling of superconductors, he discussed the possibility of using superconducting motors in aviation. Future emission-less aircrafts will be propelled by electric motors. These could be superconducting if the airplane…
Magnetic force microscopy (MFM) has become established as a standard method to probe surface magnetic textures of a large variety of magnetic materials. Working principle of MFM is based on an oscillating cantilever ended by a sharp tip covered by magnetic material. During the scanning, this magnetic tip is passed closely above the sample surface…
In the past decade, research on topological insulators became a hot topic in various fields of physics. Their unusual properties excite the interest of scientists focused on basic as well as applied research. One of the most intriguing features of topological insulators is the presence of a conductive surface in contrast to the insulating bulk….
There is a need for novel materials systems that can open a window for sub-THz-frequency electronics. Owing to its record calculated electron velocity, InN is among the hottest candidates. Recent evaluation of the state-of-the art InN grown by molecular-beam-epitaxy (MBE) indicated the electron velocity of about 1 Í 108 cms-1. However, experimental demonstration of InN-channel transistors…
Gallium nitride (GaN)-based semiconductors are increasingly used for the fabrication of highly efficient power converters. Our colleagues have succeeded in confirming the functionality of an original concept for a vertical power transistor. Modern GaN power transistors with lateral channel geometry are gradually commercialized and used in electronic industry. Compared to this concept, the vertical geometry…
The 2023 IEEE 13th International Conference “Nanomaterials: Applications & Properties” was held on Sept. 10-15, 2023, in Bratislava, Slovakia. The Conference was organized through a partnership between the IEEE Nanotechnology Council, Institute of Electrical Engineering SAS, Slovak University of Technology in Bratislava, and Sumy State University, with endorsements and support from the IEEE Magnetics Society. More info: IEEE NAP-2023…
During the visit of the Slovak-Taiwanese Commission for Economic Cooperation, representatives of the Institute of Electrical Engineering Slovak Academy of Sciences (ElÚ SAV) signed a license agreement and a memorandum of understanding with the Industrial Technology Research Institute (ITRI), Taiwan. Under the license agreement, the IEE SAS will build-up a laboratory for reliability analysis of…
Spontaneous symmetry breaking is a physical phenomenon when some system decides to choose one of several options in an unpredictable way. For example, an egg placed on its tip will roll to the side. If it was placed on the tip precisely, it is not possible to predict in advance which side it will roll…
Composite conductors based on high-temperature REBCO (rare-earth cuprates) superconductors reach high transport current densities (1010 [A/m2]) at liquid nitrogen temperatures (‑193 ˚C), which makes them good candidates for high-field magnets (tens of Tesla). That makes them an interesting option for high-power cables, magnetic resonance, nuclear magnetic resonance, etc. In contrast to standard copper wires, which…
Crystalline gallium oxide (Ga2O3) represents a new type of semiconductor material suitable for the realization of high-voltage electronic devices capable of operating in the unprecedented kilovolt range. Our colleagues have recently published a paper detailing the material properties of Ga2O3 epitaxial layers prepared at the IEE SAS. Ga2O3 crystallizes in several crystalline structures (polymorphs). Among…