Topological materials for helicity-dependent THz emission

Topological insulator (TI) materials are emerging as novel materials for spintronic applications. Here, we demonstrate helicity-dependent THz emission from Dirac semi-metal Cd 3 As 2 nanowires and used scattering-type scanning optical microscopy (s-SNOM) to identify potential single nanowire candida...

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Bibliographic Details
Main Authors: Mannan, A, Saboon, Y, Xia, CQ, Damry, DA, Schoenherr, P, Prabhakaran, D, Herz, LM, Hesjedal, T, Johnston, MB, Boland, JL
Format: Conference item
Language:English
Published: IEEE 2023
Description
Summary:Topological insulator (TI) materials are emerging as novel materials for spintronic applications. Here, we demonstrate helicity-dependent THz emission from Dirac semi-metal Cd 3 As 2 nanowires and used scattering-type scanning optical microscopy (s-SNOM) to identify potential single nanowire candidates for device applications. The preliminary investigation data of a candidate nanowire shows a homogenous topography and constant dielectric function in the MIR range. Indicating high-quality crystalline growth ideal for topological characterization.