Prednáška - Prof. dr hab. Dariusz Kaczorowski

Medzinárodné virtuálne laboratórium fyziky progresívnych materiálov - PhysNet

Pozýva na prednášku

Prof. dr hab. Dariusz Kaczorowski:

Unconventional superconductivity and other quantum critical phenomena in f-electron systems


Termín: 19.6. 2015 o 13:00 – 15:00 hod.
Miesto: Seminárna miestnosť, CFNT ÚEF SAV, Park Angelinum 9, Košice

Abstrakt prednášky:
Since the spectacular discovery of the phenomenon in 1979, advanced experimental and theoretical studies on heavy-fermion superconductivity have continued to be at the very forefront of modern condensed matter physics. This is due to the special character of the superconducting state, which cannot be described in terms of the conventional theory of superconductivity, as well as due to a variety of unusual physical behavior observed in the normal state. The microscopic nature of all these anomalous phenomena originates from strong electronic correlations in metallic systems bearing localized magnetic moments. In recent years, significant progress has been made in understanding the fundamental mechanisms responsible for the simultaneous presence of magnetism and superconductivity (by a number of decades considered as entirely antagonistic). In consequence, the scenarios of competition, coexistence or sometimes even interplay of the two cooperative phenomena have been recognized. Nevertheless, a consistent universal theory of the heavy-fermion superconductivity that might account for all its intriguing aspects is still lacking. Furthermore, new experimental discoveries in the field often result in identification of novel scientific challenges.
In my lecture I shall briefly review the basic concepts of the physics of strongly correlated electron systems with the particular emphasis put on the formation of heavy-fermion ground states, quantum critical phenomena and unconventional magnetically-driven superconductivity. A historical overview of the main discoveries made in the area will be supplemented with our own results, obtained in our laboratories in Wrocław. Finally, an attempt will be made to address a few most challenging open questions in the relevant field.

Ústav experimentálnej fyziky SAV
Watsonova 47
040 01 Košice
Slovenská republika
 

Telefón:
+421 55 792 2201
Fax: +421 55 633 62 92
e-mail: sekr@saske.sk

 

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