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Participant Seminar Abstracts

Mr. Raffaele Battilomo
Dipartimento di Fisica "E. R. Caianiello", Università degli Studi di Salerno, Fisciano (Italy)

Spin Field-Effect Transistor in a Quantum Spin-Hall Device

Abstract: Recently, superconducting materials such as heavy-fermion compounds, high transition-temperature cuprate superconductors, strontium ruthenate superconductors and iron-pnictide superconductors have been extensively studied due to their unconventional properties.

Mr. Giuseppe Cuono
Dipartimento di Fisica "E. R. Caianiello", Università degli Studi di Salerno, Fisciano (Italy)

Electronic structure and magnetic properties of Cr-based superconductors analyzed through the application of the tight-binding method

Abstract: Carmine Autieri1, Adolfo Avella2,3,4, Giuseppe Cuono2, Filomena Forte2,3, Giuseppe Guarnaccia2, Maria Teresa Mercaldo2, Canio Noce2,3, Alfonso Romano2,3 1 International Research Centre Magtop, Institute of Physics, Polish Academy of Sciences, Aleja Lo.

Mr. Samme Dahir
Institut für theoretische Physik 3, RUB, Bochum (Germany)

Interaction of Skyrmions and Pearl’s Vortices in Superconductor-Chiral Ferromagnet Bilayer

Abstract: Authors: Samme Dahir, Anatoly Volkov, Ilya Eremin We consider a superconducting/ferromagnetic bilayer (S/F-Bilayer) with magnetic skyrmions (SK) in the ferromagnetic film F (S is a superconducting thin film). Using Ljuksjutov&Pokrosky[1] ideas ...

Mr. Simon Dambach
Institute for Complex Quantum Systems, Ulm University, Ulm (Germany)

Charge Transfer across a Scanning Tunneling Microscope Junction in Presence of a Macroscopic Impedance

Abstract: When it comes to probing electronic structure on an atomic scale, scanning tunneling microscopy has evolved into one of the most powerful and versatile experimental techniques over the last decades. Recent progress in pushing the energy resolution to the ..

Miss. Alzbeta Kadlecova
Department of Condensed Matter Physics, Charles University, Prague (Czech Republic)

On the quantum phase transition in superconducting quantum dot systems

Abstract: Single-level Anderson quantum dot attached to BCS superconducting leads exhibits a 0 ? ? impurity quantum phase transition, which can be experimentally controlled either by the gate voltage or by the superconducting phase difference. We present two simple .

Mr. Adam Klosinski
Department of Condensed Matter Physics, Warsaw University, Warsaw (Poland)

Propagation of a single hole in Ca 2 RuO 4

Abstract: In recent years there has been a growing interest in the iridates and ruthenates fuelled by the fundamental importance of the spin-orbit interac- tion in these systems on the one hand and by their close resemblence to the well studied cuprates on the .

Mr. Chris Koschenz
Institute of Theoretical Physics, TU Dresden (Germany)

Generalized Hartree-Fock Theory for the Hubbard model

Abstract: I will introduce the generalized Hartree-Fock theory for the (extended) Hubbard model which allows to study magnetic ordering including the additional information about the so-called mixed phases [E. Langmann and M. Wallin, J. Stat. Phys. 127 825 (2007)].

Mr. Alfonso Maiellaro
Dipartimento di Fisica "E. R. Caianiello", Università degli Studi di Salerno, Fisicano (Italy)

From Andreev bound states to Majorana fermions in topological nanowires

Abstract: We study the transport through a topological nanowire, described by a Kitaev chain, tunnel coupled to a normal and a superconducting lead. We use a scattering matrix approach that allows us to study the evolution of the Andreev bound states (ABS) into Maj.

Mrs. Lisa Markhof
Department of Physics, RWTH Aachen, Aachen (Germany)

Applications of second order functional renormalization group in one-dimensional systems

Abstract: The functional renormalization group (FRG) has been widely used to study correlated systems with competing energy scales. For example, phase transitions of the two-dimensional Hubbard model in the weak coupling regime have been investigated [1]. Recently.

Mr. Davide Soranzio
Department of Physics, University of Trieste,Trieste (Italy)

Spectral dependence of the anisotropic effects of optical phonons on the optical properties of type-II Weyl semimetal WTe2

Abstract: Tungsten ditelluride (WTe2) is a transition metal dichalcogenide (TMDC), which has been receiving increasing attention due to the recent discovery of peculiar properties, such as its extremely large magnetoresistance [1] and possible topological features

Mr. Dominik Suszalski
Institute of Physics, Jagiellonian University, Cracow (Poland) 

Impact of Lifshitz transition on thermoelectric properties of bilayer graphene

Abstract: The existence of the Lifshitz transition in bilayer graphene is possible due to the nonzero value of the skew-interlayer hopping in tight-binding Hamiltonian, determining the trigonal warping strength in the effective low-energy Hamiltonian, an exact val..

Mr. Piotr Wrzosek
Faculty of Physics, University of Warsaw, Pasteura, Warszawa (Poland) 

Is there a spin polaron in the 1D t-J^z model?

Abstract: The problem of a single hole introduced into the undoped ground state of the 1D t-J^z model can be solved exactly. As the relevant Greens function contains a single pole, the solution supports the existence of a quasiparticle (QP) in the model [1]. Howeve