The Role of Oxygen Content in Electronic Structures of LaBa2CU30y
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چکیده
The electronic structures of the LaBa2CU30ysuperconductor were calculated using the band-structure treatment based on the EHMO approach and the role of the oxygen content was investigated. The results show that the oxygen content has a great influence on the band structures and the densities of states near the Fermi level ErThe lower or higher oxygen content results in the suppression of the transition temperature Te, which is in qualitative agreement with the behaviour of Te given by experiment. In addition, the study on the electronic charge of copper shows that the oxidation state of Cu is not the predominant factor for the supercondictivity of LaBa2CU30yand may just be a result of charge balance.
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تاریخ انتشار 2017