5 papers
Theory of bound magnetic polarons in cubic and uniaxial antiferromagnets
Dawid Bugajewski, Carmine Autieri, Tomasz Dietl
Motivated by a recent debate about the origin of remanent magnetization and the corresponding anomalous Hall effect in antiferromagnets and altermagnets, a theory of bound magnetic…
On Riordan groups involving formal semi-Laurent series and their Lie group structure
Dariusz Bugajewski, Dawid Bugajewski, Xiao-Xiong Gan +1
The main goal of this paper is to introduce and to investigate properties of generalized Riordan arrays and generalized Riordan groups that involve formal semi-Laurent series. In p…
The inverse and the composition in the set of formal Laurent series
Dawid Bugajewski
The aim of this article is to investigate the issues of multiplicative inverses and composition in the set of formal Laurent series. We show the lack of general uniqueness of inver…
Topology and geometry of the general composition of formal power series -- towards Fréchet-Lie group-like formalism
Dawid Bugajewski
In this article, we study the properties of the autonomous superposition operator on the space of formal power series, including those with nonzero constant term. We prove its cont…
Role of magnetic doping in topological HgTe and application of the Gram-Schmidt method for computing impurity states in quantum wells
Dawid Bugajewski, Tomasz Dietl
The quantum spin Hall effect in non-magnetic and Mn-doped HgTe quantum well is strongly affected by Kondo scattering of edge electrons by holes localized on acceptors. A generalize…