Back to the iron age – the physics of Fe-pnictides.

Europe/Rome
Aula B. Touschek (Laboratori Nazionali di Frascati, Via Enrico Fermi 40, Frascati)

Aula B. Touschek

Laboratori Nazionali di Frascati, Via Enrico Fermi 40, Frascati

Via Enrico Fermi 40 00044 Frascati
Description
ABSTRACT

I will share with the audience the excitement in condensed-matter community about the discovery of a new class of superconductors – Fe-pnictides, wth Tc reaching almost 60K. The phase diagram of Fe-pnictides is quite similar to that of high-temperature cuprate superconductors, and this fueled early speculations that the physics must be similar. I review recent experiments on three different families of Fe-pnictides, discuss the symmetry of the pairing gap, nodal vs no-nodal gap structure, and theoretical scenarios for the pairing mechanism. I argue that in some respects cuprates and pnictides are quite different, but in others behave as close relatives.

Slides
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