Year: 2025
Type: article
Abstract: Strong Hints of a Bose MetalAn enigmatic and anomalous metallic state turns out to be intrinsic rather than a consequence of crystalline defects. By Charles DayA strong enough magnetic field destroys superconductivity even at absolute zero.But in some materials, known as type-II superconductors, superconductivity and magnetic-field-induced vortices can coexist before that threshold is crossed.Type-II superconductivity becomes more fragile as the superconductor becomes thinner.Eventually, some theorists say, the combination of an applied magnetic field and two dimensionality begets a Bose metal, a finite-resistance state whose charge carriers, like those in a superconductor, are Cooper-paired electrons.Now Xiaoxiang Xi of Nanjing University, China, and his collaborators have found evidence consistent with a Bose metal in atomically thin films of niobium diselenide (NbSe 2 ) [1].
Source: Physics
Author: Charles Day
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4407771689