Indranil Paul, Institue Néel, Grenoble

Jeudi 1 Decembre, 16h
Amphi Howleck, Esc C, 1ème etage

Spin-lattice coupling effects in the iron based superconductors

I. Paul

The newly discovered iron based superconductors with unusually high transition temperatures
exhibit a rich phase diagram that includes structural, magnetic and superconducting transitions.
As such these materials are the latest playgrounds to study how in complex materials di-erent
phases compete, and how this unconventional setting eventually gives rise to superconductivity.
The -rst part of the talk will be a review of this topic. From a theoretical point of view one
of the goals at present is to identify the microscopic interactions that give rise to the rich phase
diagram. This is the motivation to present in the second part of the talk a study of the e-ects of
magneto-elastic couplings between the magnetic and the lattice degrees of freedom. We will argue
that several unusual magneto-structural features of these materials can be understood from this
point of view.

Haut de page



À lire aussi...

Luis Brey, Instituto de Ciencia de Materiales de Madrid

Jeudi 24 Avril 2014, 14hAmphi Holweck, Esc C, 1ème etage Negative Differential Conductivity and Coherent Tunneling transport in (...) 

> Lire la suite...

Valentina Martelli, Technische Universität Wien

Jeudi 21 Novmebre 2013, 14hAmphi Holweck, Esc C, 1ème etage Temperature-magnetic phase diagram of the cubic compound Ce3Pd20Si6 Valentina (...) 

> Lire la suite...