The shaped material is heated again to 850-1200 deg.C in a high-temp furnace. Then, the material is cooled at ultra-high pressure by quickly putting it into an ultra-high-pressure container loaded with cooling agent to obtain such room-temp super-conducting material. Different ultra-high-...
In the first step, we checked the element composition using energy dispersive X-ray spectroscopy (EDS) because the superconductivity of Pb-Bi at 4.2 K is very sensitive to its composition and the age of the solder from the time of its manufecturing14,15. This is because at room ...
Pure bulk gallium, usually known as α-Ga, has a stable orthorhombic structure at room temperature and is a type-I superconductor with critical temperature (Tc) around 1.08 K1,2. Elemental Ga, however, presents a large degree of polymorphism with more than ten different crystalline phases2...
An LSCO single crystal was thus subjected at room temperature to in-plane uniaxial pressure beyond the elastic regime (Fig. 3a, b), reaching stresses comparable to A. A relatively low yield stress is observed, followed by plastic deformation and hysteresis; such features are not uncommon in ...
The energy density 10 Hz, the substrate temperature of the laser beam at 750 °C. As substrate, the we used single-crystalline (001) MgO covered by an epitaxially grown 20 nm thick (001) Fe layer. The Fe layer was grown at room temperature and 5 Hz repetition rate and subsequently ...
Low Temp. Phys. 118 , 105 (2000)... V Polushkin,D Glowacka,R Hart,... - 《Journal of Low Temperature Physics》 被引量: 3发表: 2000年 Low-Tc direct current superconducting quantum interference device magnetometer-based 36-channel magnetocardiography system in a magnetically shielded room ...
Heating of YBa2Cu3O7 powders in a NO2-containing atmosphere at 950 °C, followed by annealing in oxygen above 750 °C and slow cooling to room temp. significantly improves the elemental homogeneity of the powder and, as a result, substantially increases the flux exlusion.doi:10.1002/chin....
This might originate from the relatively low thermal conductivity of the parylene-C film, whose room-temperature value is 0.082 Wm−1K−1. Correcting for this deviation by assuming that there is no temperature discrepancy between the spin and thermometer temperature at 200 mK, we derive...
The Nb/Cu bilayers were first grown at a base pressure of 5 × 10−7 mbar by magnetron sputtering onto a SiO2(270 nm)/Si(0.3 mm) wafer kept at room temperature. First, a 50 nm thick film of Cu was deposited on SiO2, followed by the deposition of 100 nm of Nb...
a high mobility layer between the epitaxially connected to the substrate and the thin film of superconducting material wherein the mobility of the high mobility layer at room temperature is at least 500 square centimeters per volt-second.