TaAs Weyl semimetal based one-dimensional photonic structures

Ilka Kriegel; Michele Guizzardi; Francesco Scotognella

TaAs Weyl semimetal based one-dimensional photonic structures

Optics 2018-07-10 v1 Mesoscale and Nanoscale Physics

Authors: Ilka Kriegel , Michele Guizzardi , Francesco Scotognella

Abstract

Weyl semimetals can be described as the three-dimensional analogue of graphene, showing linear dispersion around nodes (Weyl points) [1]. Tantalum arsenide (TaAs) is among the most studied Weyl semimetals. It has been demonstrated that TaAs has a very high value of the real part of the complex refractive index in the infrared region [2]. In this work we show one-dimensional photonic crystals alternating TaAs with SiO2 or TiO2 and a microcavity where a layer of TaAs is embedded between two SiO2-TiO2 multilayer.

Keywords

weyl semimetals electronic structure of materials

Cite

@article{arxiv.1807.03220,
  title  = {TaAs Weyl semimetal based one-dimensional photonic structures},
  author = {Ilka Kriegel and Michele Guizzardi and Francesco Scotognella},
  journal= {arXiv preprint arXiv:1807.03220},
  year   = {2018}
}

Comments

6 pages, 4 figures

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