Experimental process of quantum flotation

The research team conducted an experimental demonstration to prove their findings. Scientists used a single sapphire chip (like the blue gem ring worn by Princess Kate of England), and then covered the chip with a thin layer of substance called YBCO. Yttrium barium copper oxide is a famous high temperature superconductor, which belongs to the second kind of superconductor. It is the first material with a superconducting temperature higher than 77K, which means that its transition temperature is higher than the boiling point of liquid nitrogen, and it can be cooled by relatively cheap liquid nitrogen, while the previously discovered superconductors must be cooled by liquid helium or liquid hydrogen. Recently, yttrium, barium, copper and oxygen have won various concerns at the annual meeting of the Science and Technology Innovation Center Alliance. As shown in figure 1, after cooling the sapphire wafer with yttrium, barium and copper oxide outside with liquid nitrogen, the surface of the wafer releases cold fog, which makes the whole experiment look exciting.

High temperature superconductors such as Y, Ba, Cu and O can be used as magnetic resonance imaging and magnetic levitation facilities in practical applications. However, due to the high critical current density of Y-Ba-Cu-O single crystal and the low critical current density of polycrystalline crystal (only a small current can flow in superconducting state), and this material is very brittle, the traditional method can not keep its superconducting characteristics well. However, YBCO can inhibit corrosion, adhesion to polymers and nucleation, and prepare organic superconductors, insulators and superconductor tunnel junctions. Like other superconductors, YBCO will have Mesner effect at the transition temperature. Below a certain temperature, YBCO becomes diamagnetic, and the internal magnetic flux is zero, so the magnetic field lines cannot enter the superconductor, and the superconductor repels the magnetic field in the body, so any magnet on the surface of the superconductor will float at this time. This provides the possibility for the above experiments.

This experimental discovery is mainly based on the relationship between superconductor and magnet, that is, the electrons carried between them repel each other and will repel each other at the moment of contact. Because the sapphire wafer covered with yttrium, barium, copper and oxygen is very thin, the electromagnetic wave of the magnet can instantly penetrate the weak point on the wafer, that is, the flux tube on the wafer. Flux tubes in matter have such a property that when the external magnetic field strength is gradually increased, the proportion of flux tubes in matter also increases, and the superconductivity of matter disappears completely until all flux tubes are completely overlapped. The flux tube located in the superconductor material can also make the material float, rotate and even move in mid-air, which is completely like the magician's patent.