Abstract
We calculate the electronic structure, phonon spectrum and electron–phonon (EP) interaction forCaAl2Si2 using a full-potential, density-functional-based method. It is found thatCaAl2Si2 isa semimetal with a small overlap between the conduction and valence bands. The transport propertiesof CaAl2Si2 are discussed in combination with its special electronic structure. It is shown that inCaAl2Si2 both the electronic density of states at the Fermi level and the EP coupling strength arevery small, resulting in vanishing superconductivity.
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