Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 963, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2023.171274
Keywords
Kane-Mele model; Transverse dynamical spin susceptibility; Spin-orbit coupling; Strain; Doping
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In this study, we investigated the dynamical spin susceptibility of the GeCH3 monolayer in the presence of an external magnetic field by introducing the Kane-Mele model. Our findings demonstrated that the transverse excitation modes exhibited frequency shifts under tensile or compressive biaxial strain. Moreover, the frequency position of the sharp peak in the transverse dynamical spin susceptibility remained unaffected by changes in the external magnetic field, electron doping, or spin-orbit coupling.
In this study, we introduced the Kane-Mele model in the presence of an external magnetic field and used a tightbinding approach to examine the dynamical spin susceptibility of the GeCH3 monolayer. We employed Green's function technique to determine the dynamical spin susceptibility behavior of the GeCH3 monolayer in the presence of an external magnetic field, strain, spin-orbit coupling (SOC), electron, and hole doping at room temperature. Our results show that the transverse excitation modes tend to move to lower (higher) frequencies with tensile (compressive) biaxial strain.In addition, the frequency position of the sharp peak in the transversedynamical spin susceptibility is not affected by changes in the external magnetic field, electron doping, or SOC. Also, the influences of the wave vector and doping on the frequency dependence of the transversedynamical spin susceptibility are studied in detail. These results offered here exhibit that the GeCH3 monolayer is appropriate for use in detectors.
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