In this paper we propose a model to reproduce superconductive and normal properties of the iron pnictide LiFeAs in the framework of the four-band s± wave Eliashberg theory. A confirmation of the multiband nature of the system rises from the experimental measurements of the superconductive gaps and resistivity as function of temperature. We found that the most plausible mechanism is the antiferromagnetic spin fluctuation and the estimated values of the total antiferromagnetic spin fluctuation coupling constant in the superconductive and normal state are Ltot = 2.00 and Ltot,tr = 0.77 respectively.

Normal and superconducting properties of LiFeAs explained in the framework of four-band Eliashberg theory / Ummarino, Giovanni; Galasso, Sara; Daghero, Dario; Tortello, Mauro; Gonnelli, Renato; Sanna, A.. - In: PHYSICA. C, SUPERCONDUCTIVITY. - ISSN 0921-4534. - STAMPA. - 492:(2013), pp. 21-24. [10.1016/j.physc.2013.05.004]

Normal and superconducting properties of LiFeAs explained in the framework of four-band Eliashberg theory

UMMARINO, Giovanni;GALASSO, SARA;DAGHERO, Dario;TORTELLO, MAURO;GONNELLI, Renato;
2013

Abstract

In this paper we propose a model to reproduce superconductive and normal properties of the iron pnictide LiFeAs in the framework of the four-band s± wave Eliashberg theory. A confirmation of the multiband nature of the system rises from the experimental measurements of the superconductive gaps and resistivity as function of temperature. We found that the most plausible mechanism is the antiferromagnetic spin fluctuation and the estimated values of the total antiferromagnetic spin fluctuation coupling constant in the superconductive and normal state are Ltot = 2.00 and Ltot,tr = 0.77 respectively.
File in questo prodotto:
File Dimensione Formato  
PHYSC_492_21_2013.pdf

non disponibili

Descrizione: Articolo completo (versione editoriale)
Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 558.67 kB
Formato Adobe PDF
558.67 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2507867
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo