Metallic behavior at YBaCuO7/ZAs interfaces (Z=Ga, Al)

2012/08/07 by R. Torres, Torres, R., R. Baquero +1
Engineering · Materials Science · Physics and Astronomy · #Acoustic Wave Resonator Technologies #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Materials Science (cond-mat.mtrl-sci) #Other Condensed Matter (cond-mat.other) #Physics of Superconductivity and Magnetism

paper · pdf · doi:10.48550/arxiv.1208.1312

openalex publication_date 2012/08/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present the electronic band structure of the interfaces YBa₂Cu₃O₇/GaAs (direct gap) and YBa₂Cu₃O₇/AlAs (indirect gap) in different configurations calculated using the Density Functional Theory as in the Wien2k code within the local density approximation. We have projected the density of states at the atomic layers forming the interface. We concentrated in the semiconductor side. The two first atomic layers in the semiconductor side of the interface present a clear metallic behavior. We found for both semiconductors considered that it converges towards the bulk atomic-layer projected density of states at the fifth atomic layer from the interface. We considered an ideal non-reconstructed interface in the (001) direction in this work. This behavior is interesting and could be used in several technological applications.

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