The total energy of bcc Fe containing Cu clusters with different sizes and number densities are calculated using the molecular dynamics (MD) method.The results
As an important functional material,Bi2 O3 is found in seven polymorphs.We systematically analyze the transformation from α-,β- and ε- to δ-Bi2 O3 by using
Er3+-doped and Yb3+ /Er3+ co-doped Gd3Sc2Ga3O12 (abbreviated as Er:GSGG and Yb,Er:GSGG,respectively)laser crystals are investigated by using a combination of sp