New superconductive materials will become a crucial part of Tokamak machines and faster, more efficient electronics.
the researchers describe a nitrogen-doped lutetium hydride that exhibits superconductivity at 69° Fahrenheit and 10 kilobars of pressure.
· Power grids that transmit electricity without the loss of up to 200 million megawatt hours of the energy that now occurs due to resistance in the wires· More affordable medical imaging and scanning techniques such as MRI and magnetocardiography· Tokamak machines that use magnetic fields to confine plasmas to achieve fusion as a source of unlimited power
Nitrogen, like carbon, has a rigid atomic structure that can be used to create a more stable, cage-like lattice within a material and it hardens the low-frequency optical phonons, according to Dias. This structure provides the stability for superconductivity to occur at lower pressure. The 145,000 psi of pressure required to induce superconductivity is nearly two orders of magnitude lower than the previous low pressure created in Dias’s lab.With funding support from Dias’s National Science Foundation CAREER award and a grant from the US Department of Energy, his lab has now answered the question of whether superconducting material can exist at both ambient temperatures and pressures low enough for practical applications.
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