305 citations · 433 across the 9 of their papers we have counts for
9 papers
Theory of spin-polarized high-resolution electron energy loss spectroscopy from nonmagnetic surfaces with a large spin-orbit coupling
Khalil Zakeri, Christophe Berthod
The scattering theory of low-energy (slow) electrons has been developed by Evans and Mills [Phys. Rev. B 5, 4126 (1972)]. The formalism is merely based on the electrostatic Coulomb…
Direct probing of a large spin-orbit coupling in the FeSe superconducting monolayer on STO: Evidence for nontrivial topological states
Khalil Zakeri, Dominik Rau, Jasmin Jandke +3
In condensed-matter physics spin-orbit coupling (SOC) is a fundamental physical interaction, which describes how the electrons' spin couples to their orbital motion. It is the sour…
Direct evidence of a charge depletion region at the interface of Van der Waals monolayers and dielectric oxides: The case of superconducting FeSe/STO
Khalil Zakeri, Dominik Rau, Janek Wettstein +5
The discovery of two dimensional Van der Waals materials has opened up several possibilities for designing novel devices. Yet a more promising way of designing exotic heterostuture…
Nonlinear Decay of Quantum Confined Magnons in Itinerant Ferromagnets
Kh. Zakeri, A. Hjelt, I. V. Maznichenko +2
Quantum confinement leads to the emergence of several magnon modes in ultrathin layered magnetic structures. We probe the lifetime of these quantum confined modes in a model system…
On the phonon dispersion relation of single-crystalline --FeSe
Khalil Zakeri, Tobias Engelhardt, Thomas Wolf +1
We report on the phonon spectrum probed at the --FeSe(001) surface by means of high-resolution electron energy-loss spectroscopy (HREELS). Single crystals of --FeSe are cleav…
Unconventional pairing in single FeSe layers
Jasmin Jandke, Fang Yang, Patrik Hlobil +6
The pairing mechanism in iron-based superconductors is believed to be unconventional, i.e. not phonon-mediated. The achieved transition temperatures Tc in these superconductors are…
Temperature Dependence of Magnetic Excitations: Terahertz Magnons above the Curie Temperature
H. J. Qin, Kh. Zakeri, A. Ernst +1
When an ordered spin system of a given dimensionality undergoes a second order phase transition the dependence of the order parameter i.e. magnetization on temperature can be well-…
Asymmetric Spin-wave Dispersion on Fe(110): Direct Evidence of Dzyaloshinskii--Moriya Interaction
Kh. Zakeri, Y. Zhang, J. Prokop +4
The influence of the Dzyaloshinskii-Moriya interaction on the spin-wave dispersion in an Fe double layer grown on W(110) is measured for the first time. It is demonstrated that the…
Probing of the interfacial Heisenberg and Dzyaloshinskii--Moriya exchange interaction by magnon spectroscopy
Khalil Zakeri
This Topical Review presents an overview of the recent experimental results on the quantitative determination of the magnetic exchange parameters in ultrathin magnetic films and mu…