New and Non-Cuprate SuperconductorsNo Access

STRUCTURE EFFECT ON THE AlB₂-LIKE SUPERCONDUCTOR CaAlSi

R. MA

Department of Physics, Southeast University, Nanjing 210096, China

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M. LIU

Department of Physics, Southeast University, Nanjing 210096, China

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, and

G. Q. HUANG

Department of Physics, Nanjing Normal University, Nanjing 210097, China

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https://doi.org/10.1142/S0217979207044494Cited by:0 (Source: Crossref)

Abstract

In this paper, using the first-principles calculations, we study the crystal structure effect on the superconductivity in CaAlSi. It is proposed that an AF-like superstructure model for Al (or Si) atoms arranged along the c direction may mediate the inconsistency of the electron-phonon coupling estimated from theory and experiment, and explain the anomalous superconductivity in CaAlSi.

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