superconductivity tagged posts

Researchers from ICMAB-CSIC, the Politecnico di Milano and Université de Liège have adapted a direct laser writing technique that allows them to “draw” superconducting properties in a material. The result is a new way to locally program the behavior of a superconductor, tuning it from a fully superconducting state to an insulating one with extraordinary precision.

High-temperature superconductors (HTSC) are materials that can conduct electricity without resistance at higher temperatures than conventional superconductors...

In the field of superconductivity—the phenomenon in which electrons can flow through a material with essentially zero resistance—the “holy grail” of discovery is a superconductor that can perform under everyday temperatures and pressures. Such a material could revolutionize modern life. But currently, even the “high-temperature” (high-Tc) superconductors that have been discovered must be kept very cold to function—too cold for most applications.

Scientists still have much to learn before room-temperature superconductivity can...

When two superconducting regions are separated by a strip of non-superconducting material, a special quantum effect can occur, coupling both regions: The Josephson effect. If the spacer material is a half-metal ferromagnet novel implications for spintronic applications arise. An international team has now for the first time designed a material system that exhibits an unusually long-range Josephson effect: Here, regions of superconducting YBa2Cu3O7 are separated by a region of half-metallic, ferromagnetic manganite (La2/3Sr1/3MnO3) one micron wide.

With the help of magneto-transport measurements, the researchers were able to demonstrate the presence of a supercurrent circulating through the manganite — this supercurrent is arising from the superconducting co...

Researchers have demonstrated a completely novel state of matter in a metal. It is created by the combination of four electrons — until now, only electron pairs were known. This discovery could lead to a new type of superconductivity, an entirely new research direction, and revolutionary technologies such as quantum sensors.

An international research team from the Cluster of Excellence ct.qmat-Complexity and Topology in Quantum Matter has demonstrated a completely novel state of matter in a metal...