Could crystalline GeSbTe be considered a dielectric?

[johng23]

I am interested in the recent theoretical prediction that a shocked crystal can be a source of coherent THz radiation. The computational study was done for a crystal of NaCl, but the authors say that basically any dielectric crystal would work, as the radiation is emitted due to polarization currents in the shocked material, and the coherence comes from the periodicity of the lattice.

My question is, is it reasonable to say that GeSbTe (in a cubic, distorted rocksalt form) may show this effect? Of course it's entirely speculative - no one has observed the effect experimentally anyway. I'm just not sure how to judge the polarizability of this structure.

 

[Navin A S]

GeSbTe is a chalcogenide, so I'm guessing it's relatively polarizable. Does anyone have any insight?

 

[oswaler]

I would say that it is possible that crystalline GeSbTe could exhibit dielectric properties and potentially emit coherent THz radiation under shock conditions. However, this is purely speculative and would require further experimental studies to confirm. The polarizability of a crystal structure is a complex property that depends on various factors such as the arrangement of atoms, their electronic structure, and the presence of defects or impurities. Without experimental data or theoretical calculations specifically focused on GeSbTe, it is difficult to accurately predict its polarizability and potential for coherent THz radiation emission. Therefore, it would be premature to definitively say that GeSbTe could exhibit this effect, but it is certainly an interesting possibility worth exploring further.