New Superconducting RbFe2As2: A First-principles Investigation
M. Aftabuzzaman, A.K.M.A. Islam
TL;DR
This paper presents first-principles calculations of RbFe2As2, a newly discovered superconductor with a Tc of 2.6 K, analyzing its structural, elastic, and electronic properties and comparing it to related systems.
Contribution
It provides the first computational study of RbFe2As2's properties, offering insights into its superconducting behavior and differences from similar compounds.
Findings
RbFe2As2 is a bulk superconductor with Tc = 2.6 K.
The electronic structure differs from undoped BaFe2As2.
Elastic and structural properties support its superconductivity.
Abstract
RbFe2As2 has recently been reported to be a bulk superconductor with Tc = 2.6 K in the undoped state, in contrast to undoped BaFe2As2 with a magnetic ground state. We present here the results of the first-principles calculations of the structural, elastic and electronic properties for this newest superconductor and discuss its behaviour in relation to other related systems. Keywords: RbFe2As2, Electronic structure; Elastic constant; Superconductivity. PACS: 74.70.Dd, 74.10.+v, 74.20.Pq, 75.25.Ld
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