Roman Micnas

Faculty of Physics
Adam Mickiewicz University in Poznań

Fields of interest:

  • Condensed matter theory:
  • Strongly correlated electron systems
  • Magnetism
  • Phase transitions and critical phenomena
  • High temperature superconductivity
  • Correlated bosons and fermions on optical lattices

Recent publications:

A. S. Sajna, T. P. Polak, R. Micnas and P. Rożek:
Ground-state and finite-temperature properties of correlated ultracold bosons on optical lattices,
Phys. Rev. A 92, 013602 (2015).

R. Micnas:
On the Boson-Fermion resonant model on a lattice,
Philosophical Magazine 95, 622 (2015),
The Focus Issue: From Correlations to Unconventional Superconductivity.

A. Cichy and R. Micnas:
The Spin-Imbalanced Attractive Hubbard Model in d = 3: Phase diagrams and BCS-BEC crossover at low filling,
Annals of Physics  347, 207 (2014).

G. Pawłowski, R. Micnas and S. Robaszkiewicz:
Effects of Disorder on Superconductivity of Systems with Coexisting Itinerant Electrons and Local Pairs,
Phys. Rev. B 81, 064514 (2010).

R. Micnas:
Superfluid transition temperature of the Boson-Fermion model on a lattice,
Phys. Rev. B 76, 184507 (2007).

A. Bussmann-Holder, H. Keller, A.R. Bishop, A. Simon, R. Micnas  and K.A. Müller
Unconventional isotope effects as evidence for polaron formation in cuprates
Europhys. Lett. 72, 423 (2005).

R. Micnas,  S. Robaszkiewicz and A. Bussmann-Holder:
Two-component scenarios for non-conventional (exotic) superconductors,
”Structure and Bonding: Superconductivity in Complex Systems” 114:pp.13-69,
Springer Verlag  (2005).

R. J. Wojciechowski, A. Lehmann-Szweykowska, R. Micnas, G.A. Gehring and P.E. Wigen:
Electronic-cluster model of ytrium iron garnets,
Phys. Rev. B 69, 214434 (2004)..

 R. Micnas and S. Robaszkiewicz:
Theory Aspects of High-Temperature Superconductivity,
in ”High-Tc Superconductivity 1996: Ten Years after the Discovery”
(E. Kaldis,E. Liarokapis and K.A. Müller, eds.) (Kluwer,Dordrecht, 1997),
NATO ASI Series Vol.343 p.31-93.

R. Micnas,  J. Ranninger and S. Robaszkiewicz:
Superconductivity in Narrow-Band Systems with Local Nonretarded Attractive Interactions,
Rev. Mod. Phys. 62, 113 (1990).