作者: Jianjun Liu , Chun-gang Duan , W.N. Mei , R.W. Smith , J.R. Hardy
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摘要: Abstract Order–disorder structural phase transitions in alkali perchlorates M ClO 4 ( =Na, K, Rb, Cs) are investigated using molecular dynamics simulation. The potentials the simulations based on Gordon–Kim modified electron gas formalism extended to ions. yield first-order from low temperature orthorhombic structures high cubic NaCl structures. perchlorate ions found be orientational disordered phases.