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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).…
Phononic drumhead surface state in distorted kagome compound RhPb
Andrzej Ptok, William R. Meier, Aksel Kobiałka +9
RhPb was initially recognized as one of a CoSn-like compounds with symmetry, containing an ideal kagome lattice of -block atoms. However, theoretical calculations predi…
Pb (=Pd,Pt and =S,Se) with transition metal kagome net: Dynamical properties, phonon nodal line, phonon surface states, and chiral phonons
Surajit Basak, Aksel Kobiałka, Andrzej Ptok
Shandite with NiPbS chemical formula and Rm symmetry, contains the kagome sublattice formed by the transition metal atoms. Recent experimental results co…
Chiral phonon in the cubic system based on the Laves phase of Bi (K, Rb, Cs)
Surajit Basak, Przemysław Piekarz, Andrzej Ptok
B (K, Rb, Cs) compounds crystallize in the cubic Laves phase (symmetry Fdm). The geometry of the crystal structure allows the realization of chiral phonons, w…
Termination dependence of the surface states in PbPd
Surajit Basak, Andrzej Ptok
Topological properties of systems lead to the emergence of surface states which can be observed experimentally within the angle-resolved photoemission spectroscopy (ARPES) measurem…