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Electron energy relaxation under terahertz excitation in (Cd1− x Zn x )3As2 Dirac semimetals

Galeeva, Alexandra V. ; Krylov, Ivan V. ; Drozdov, Konstantin A. ; Knjazev, Anatoly F. ; Kochura, Alexey V. ; Kuzmenko, Alexander P. ; Zakhvalinskii, Vasily S. ; Danilov, Sergey N. ; Ryabova, Ludmila I. ; Khokhlov, Dmitry R.



Abstract

We demonstrate that measurements of the photo-electromagnetic effect using terahertz laser radiation provide an argument for the existence of highly conductive surface electron states with a spin texture in Dirac semimetals (Cd1-xZnx)(3)As-2. We performed a study on a range of (Cd1-xZnx)(3)As-2 mixed crystals undergoing a transition from the Dirac semimetal phase with an inverse electron energy ...

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