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The discovery of persistent metallic conductivity in ytterbium cesium fulleride (Yb₂CsC₆₀) under low-temperature conditions represents a significant finding for condensed matter physics, specifically within the study of strongly correlated electron systems and quantum materials. This research advances our fundamental understanding of how molecular lattices can maintain electronic mobility against strong interactions that typically induce insulating states, offering potential insights into novel superconducting mechanisms or high-performance conductive materials.
Newly synthesized fullerene material remains metallic even under low temperatures

An international team whose research was coordinated by Osaka Metropolitan University (OMU) has reported the survival of metallic behavior in the strongly correlated molecular material ytterbium cesium fulleride (Yb₂CsC₆₀). The electrons in the newly synthesized material remained mobile and continued to conduct electricity even at the lowest temperatures studied, despite strong electron interactions that would normally be expected to drive the material into an insulating state.
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