Recent research has challenged the Fermi liquid theory in the study of superconductivity, particularly in the observation of a non-Fermi liquid state known as the "strange metal phase." Studies have shown that this phase exhibits continuous current rather than discrete quasiparticles, prompting further exploration into its nature and implications. Researchers have investigated charge density fluctuations as a potential signature of the quantum critical point, suggesting a link between the two phenomena. These findings may have significant implications for the development of high-temperature superconductors, although further research and discussion are needed before any definitive conclusions can be drawn.
Researchers from TU Dortmund University have created a semiconductor from indium gallium arsenide that exhibits continuous time crystal behavior, setting a new record for sustained oscillations lasting at least 40 minutes. This breakthrough in quantum physics opens the door to new possibilities in precise frequency measurement and could lead to the development of new kinds of hardware.
Researchers at Rice University have discovered the first-ever 3D crystalline metal in which electrons can be locked in place, a breakthrough that could lead to the discovery of many more such materials. The discovery is based on a Kagome lattice structure, first described in 1951, and represents a significant advancement in understanding the behavior of electrons in quantum electronic states. Qimiao Si, a theoretical physicist at Rice University, compared the discovery to finding a new continent, emphasizing the potential for further exploration and development in this area of physics.
A research team from the Hefei Institutes of Physical Science, Chinese Academy of Sciences, has discovered a new superconducting material, (InSe2)xNbSe2, with a unique lattice structure and a superconducting transition temperature of 11.6 K, the highest among transition metal sulfide superconductors under ambient pressure. This material exhibits an impressive critical current density and opens up new possibilities for advancing superconductivity research and developing high-temperature superconductors with improved performance.
