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https://doi.org/10.1038/srep39646

has been cited by the following article:

• TITLE: Theoretical Study on the Effect of Multiband Structure on Critical Temperature and Electronic Specific Heat in SmOFeAs Iron Pnictide Superconductor

  AUTHORS: Shamin Masih, Piyush Masih, Sarita Khandka

  KEYWORDS: Electronic Specific Heat, Iron Pnictide Superconductor, Multiband, Superconducting Order Parameter

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.10 No.7, July 26, 2022

  ABSTRACT: In the present theoretical work, superconducting order parameter (∆) and electronic specific heat (Ces) of SmOFeAs iron pnictide (IP) superconductor has been studied using multiband (MB) model of IP superconductors. Attempt has been made to use the MB structure of IP superconductors and expressions for critical temperature (Tc) and Ces are obtained, calculations being made for one, two and three bands of SmOFeAs. It has been found that MB results are close to the experimental value of Tc for this compound. Ces calculations show jump of 1.5 × 10-5 eV/atom K, 4 × 10-5 eV/atom K and 4 × 10-5 eV/atom K for one, two and three band models respectively. The study brings out the importance of MB structure in IPs, highlighting the fact that increasing the number of bands, increases Tc. The specific heat jump (∆C) does not correspond to the BCS value, thereby proving that IPs are unconventional in nature.