Article list
Superconducting tapes are attractive for use in magnets because they combine several favorable properties: a high upper critical field, good mechanical strength and a high critical current density of the ReBCO layer. The increase in current carrying capacity could be achieved by assembling many coated conductor (CC) tapes in parallel paths in a superconducting cable….
Silicon (Si) is a promising anode material for Li-ion batteries due to its high theoretical capacity (10 times higher than commonly used graphite) and abundant presence in the earth’s crust. However, the formation of an unstable solid-electrolyte interphase (SEI) and significant volume expansion during lithiation result in structural degradation, leading to a decrease in the…
Low-loss devices are needed tackle global warming issues. Devices using superconducting conductors represent possible solutions for these goals. Our colleagues have recently presented a method to characterize the effect of mechanical stress on the electromagnetic properties of superconductors. Low-losses devices and green energy solutions are a necessity to prevent global warming. Devices using superconductors could…
Magnetic Force Microscopy (MFM) is a technique that visualizes the distribution of a magnetic field of the sample with very high resolution. Our colleagues recently designed a new, more durable MFM tip with a magnetic vortex. In standard MFM, a sharp tip covered with a thin magnetic layer is used, which is placed at the…
Gallium oxide (Ga2O3) is a promising material for manufacturing of semiconductor devices. The main advantage of Ga2O3 is its large energy gap and the resulting high breakdown field. This allows the use of Ga2O3 epitaxial films for processing of high voltage devices (transistors, diodes), while the wide bandgap opens up the possibilities of its use…
Superconductors are materials capable of carrying electric current without resistance and therefore without energy loss. This is true as long as its magnitude does not exceed the value of the so-called critical current. Composite conductors based on high-temperature superconductors (HTS), cuprate REBa2Cu3O7-δ, reach high transport current densities (1010 [A/m2]) at relatively achievable…
Molybdenum ditelluride (MoTe2) belongs to a large group of materials with a layered structure, also known as 2D materials. This means that their properties (e.g. electric) change significantly when the material is extremely thin, consisting of only a few atomic planes stacked on top of each other. This property distinguishes layered materials from bulk materials….
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….