This article is cited in 13 papers

CONDENSED MATTER

Electronic and superconducting properties of the AFeAs (A = Li, Na) family alkali-metal pnictides: current stage of the research (brief review)

T. E. Kuzmicheva^a, S. A. Kuzmichev<sup>ba

a</sup> Lebedev Physcial Institute, Russian Academy of Sciences, Moscow, 119991 Russia
^b Faculty of Physics, Moscow State University, Moscow, 119991 Russia

Abstract: The review is focused on one of the most exotic families of iron-based superconductors belonging to the AFeAs structural class, where A is an alkali metal. We briefly concern physical and electronic properties of the typical members of this family, LiFeAs and NaFeAs, discuss the theoretical models describing the multigap superconducting state, and the experimental data available in literature. As well, we specify the main unsolved problems, that seem crucial for both, the AFeAs family and for iron-based superconductors in general.

Received: 05.10.2021
Revised: 14.10.2021
Accepted: 15.10.2021

DOI: 10.31857/S1234567821220110

 English version: Journal of Experimental and Theoretical Physics Letters, 2021, 114:10, 630–642

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