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Projekt Druckansicht

Unconventional quantum states of matter in Fe-based superconductors

Fachliche Zuordnung Theoretische Physik der kondensierten Materie
Förderung Förderung von 2010 bis 2020
Projektkennung Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 168111801
 
The principal goal of this project is a microscopic description of high-temperature superconductivity (SC) in the iron pnictides. In collaboration with experimental groups (in particular, carrying out photoemission, optical and Raman experiments) we would like to further clarify ”what is material specific and what is universal” when considering the pairing mechanism, the symmetry of the pairing state, etc. Of particular interest is the fundamental question whether there exists a universal electronic mechanism of SC in a wider class of materials, with the iron pnictides and the cuprates representing two characteristic families, where strong antiferromagnetic correlation drives other ordering tendencies. Applying the functional renormalization group (fRG) technique supported by other methodologies (densityfunctional theory, cluster techniques), we plan to systematically study the influence of the lattice structure, of charge fluctuations (p-bands) and of specific phonons (magnon-phonon coupling) on the SC state, its critical temperature and symmetry (possibility of a time-reversal symmetry breaking state).
DFG-Verfahren Schwerpunktprogramme
Internationaler Bezug Schweiz
Beteiligte Person Professor Dr. Ronny Thomale
 
 

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