101 citations · 947 across the 69 of their papers we have counts for
69 papers
Topological in-gap chiral edge states in superconducting Haldane model with spin-orbit coupling
Sajid Sekh, Andrzej Ptok
Topological superconductivity is currently one of the prime interests, given the properties of its exotic nature of chiral edge states. A broken time-reversal symmetry (TRS) is an…
Evidences for local non-centrosymmetricity and strong phonon anomaly in EuCu2As2: A Raman spectroscopy and lattice dynamics study
Debasmita Swain, Mainak Dey Sarkar, Andrzej Ptok +3
Phonon modes and their association with the electronic states have been investigated for the metallic EuCuAs system. In this work, we present the Raman spectra of this…
Comment on "Fully gapped superconductivity and topological aspects of the noncentrosymmetric superconductor TaReSi"
Andrzej Ptok
In a recent paper [T. Shang et al., Phys. Rev. B 107, 224504 (2023)], the authors study the physical properties of TaReSi compounds having Ima2 structure. This noncentrosymmetric s…
Lattice dynamics of altermagnetic ruthenium oxide RuO
Surajit Basak, Andrzej Ptok
Altermagnetic ruthenium oxide RuO crystallizes with P4/mnm symmetry. Here we discuss the lattice dynamics of this structure. We show and discuss the phonon dispersion a…
Electronic and dynamical properties of cobalt monogermanide CoGe phases under pressure
Surajit Basak, Aksel Kobiałka, Małgorzata Sternik +5
We present the pressure dependence of the electronic and dynamical properties of six different CoGe phases: orthorhombic Cmmm, hexagonal P6/mmm and P2m, monoclinic C2/m, c…
Lattice dynamics study of electron-correlation-induced charge density wave in antiferromagnetic kagome metal FeGe
Andrzej Ptok, Surajit Basak, Aksel Kobiałka +5
Electron-correlation-driven phonon soft modes have been recently reported in the antiferromagnetic kagome FeGe compound and associated with the observed charge density wave (CDW).…