7 papers
Exciton-induced magnons carrying orbital angular momentum in CrI3
Martin Pavelka, Vishal Shokeen, Ruslan Chulkov +15
Magnons are collective spin excitations that contain and transport spin angular momentum in magnetic materials. It has been suggested that they can also carry orbital angular momen…
Pseudo-Hermitian Magnon Dynamics
Jamal Berakdar, Xi-guang Wang
A defining quantity of a physical system is its energy which is represented by the Hamiltonian. In closed quantum mechanical or/and coherent wave-based systems the Hamiltonian is i…
Photonics of topological magnetic textures
Vakhtang Jandieri, Ramaz Khomeriki, Daniel Erni +4
Topological textures in magnetically ordered materials are important case studies for fundamental research with promising applications in data science. They can also serve as photo…
PT-Symmetric Magnon Lasing and Anti-Lasing
Xi-guang Wang, Tian-xiang Lu, Guang-hua Guo +2
A mechanism for electrically tunable PT-symmetric magnonic lasing and anti-lasing is proposed along with a device consisting of a current-biased region in a magnetically ordered pl…
Conductive domain walls in ferroelectrics as tunable coherent THz radiation source
Ramaz Khomeriki, Kathrin Dörr, Jamal Berakdar
THz emission associated with currents in conductive domains in BiFeO following infrared radiation is theoretically investigated. This experimentally observed phenomenon is expl…
Electrically Tunable Magnonic Bound States in the Continuum
Xi-guang Wang, Guang-hua Guo, Jamal Berakdar +1
Low energy excitations of a magnetically ordered system are spin waves with magnon being their excitation quanta. Magnons are demonstrated to be useful for data processing and comm…