All articles tagged with #strontium ruthenate
UIUC physicists unexpectedly observed a massless quasiparticle in strontium ruthenate, matching the long-predicted 'demon' from David Pines’ theory and suggesting new physics that could enable higher-temperature superconductivity and reshape energy transmission research.
New research applying shear strain to ultrathin crystals of strontium ruthenate (Sr₂RuO₄) found that its superconducting transition temperature remains almost unchanged, challenging previous theories and suggesting a simpler, one-component superconducting state. This study refines understanding of the material's hidden symmetry and opens new avenues for exploring unconventional superconductors.
After 67 years, researchers have finally confirmed the existence of the elusive "demon" particle, a massless and neutral entity in solids, as predicted by physicist David Pines. Using a nonstandard experimental technique, a research team led by Peter Abbamonte at the University of Illinois Urbana-Champaign detected the demon particle in the metal strontium ruthenate. The demon particle's unique properties have made it difficult to detect, but this discovery underscores the value of innovative research approaches and opens up new possibilities for understanding the behaviors of multi-band metals.
Physicists have accidentally discovered Pines' Demon, a quantum phenomenon predicted in 1956, in the material strontium ruthenate. Pines' Demon is a type of plasmon, a discrete unit of waves among rippling electrons, and its discovery in a 3D metal has important implications for material physics. The researchers found this phenomenon while studying the material with electron spectroscopy and believe that further research on multi-band metals could provide insights into the behavior of demons and their role in superconductivity.