# New Superconducting RbFe2As2: A First-principles Investigation

## 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.

## Key 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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Source: https://tomesphere.com/paper/0911.2394