7 papers
Optimizing high-temperature electron mobility in single-crystal BiOSe based on its unconventional dependence on concentration
AntonÃn Sojka, Petr Knotek, Jan Zich +10
Quasi-2D BiOSe is part of an intensive materials research effort aimed at finding new semiconductors that outperform silicon-based electronics in terms of speed and power c…
Incipient magnetic instability in RuO with random phase approximation
Diana Csontosová, Kyo-Hoon Ahn, Jan Kuneš
We study the instability in RuO using the Hartree-Fock approximation followed by the random phase approximation. We employ a three-orbital Hubbard model without spin-orbit coup…
Thermal conductivity of CdCrSe ferromagnet at low temperatures: role of grain boundaries and porosity
JiÅà Hejtmánek, Kyo-Hoon Ahn, ZdenÄk Jirák +5
It is unambiguously demonstrated that the low temperature magnon specific heat in a ferromagnet varies as T and the magnon thermal conductivity, due to T - dependen…
Phonon properties and unconventional heat transfer in quasi-2D crystal
Jan Zich, AntonÃn Sojka, Petr Levinský +10
Bi2O2Se belongs to a group of quasi-2D semiconductors that can replace silicon in future high-speed/low-power electronics. However, the correlation between crystal/band structure a…
Semiclassical model of magnons in double-layered antiferromagnets
Seo-Jin Kim, ZdenÄk Jirák, JiÅà Hejtmánek +3
The stability and magnonic properties of double-layered antiferromagnets are investigated using two model systems, a linear chain (LC) and a more complex chain of railroad trestle…
Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface
Miina Leiviskä, Reza Firouzmandi, Kyo-Hoon Ahn +22
The resistance of a heavy metal can be modulated by an adjacent magnetic material through the combined effects of the spin Hall effect, inverse spin Hall effect, and dissipation of…