Magnetic excitations in the frustrated Cairo pentagon lattice compound Bi4Fe5...

The Cairo lattice is a tiling of irregular pentagons, each with 4 long and 1 short sides, thus producing two competing nearest neighbour interactions. When the short bond...开罗晶格（Cairo lattice）是一种由不规则五边形构成的平面铺砌结构，每个五边形均拥有4条长边与1条短边，由此产生两种相互竞争的最近邻相互作用。当短键（short bond）……