All articles tagged with #kagome lattice
The study presents evidence of a long-range, coherent many-body electronic state in the kagome metal CsV3Sb5, characterized by macroscopic interference effects in magnetoresistance measurements, which persist over micrometers and are sensitive to sample geometry and strain, suggesting a state with similarities to superconductivity but without dissipation.
Scientists have discovered active flat electronic bands in a kagome superconductor CsCr₃Sb₅, providing experimental evidence of quantum states influenced by lattice geometry, which could lead to new quantum materials and technologies.
Researchers have conducted a detailed experimental study of the distinct electron pockets in the metallic kagome ferromagnet Fe3Sn2 using state-of-the-art laser-based micro-focused ARPES, overcoming averaging over crystallographic twins and surface sensitivity. The study revealed two distinct yet equivalent areas rotated from each other by 180°, indicating twinned domains, and provided insights into the electronic band structure and quasiparticle behavior at low temperatures. The findings suggest a many-body origin for the observed electron pockets and highlight the potential for exploiting electron-correlation effects for both measurement of the effective Coulomb interaction and the discovery of new electronic phenomena in materials with strongly influenced band structures.
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.
Ultrahigh-resolution and low-temperature angle-resolved photoemission spectroscopy have been used to directly observe a nodeless, nearly isotropic, and orbital-independent superconducting gap in the momentum space of two exemplary CsV3Sb5-derived kagome superconductors. The gap structure is robust to the appearance or absence of charge order in the normal state, providing indispensable information on the electron pairing symmetry of kagome superconductors and advancing our understanding of the superconductivity and intertwined electronic orders in quantum materials.