arXiv Mesoscale and Nanoscale Physics
arXiv Mesoscale and Nanoscale Physics
4 years ago

Complete Spin and Valley Polarization by Total External Reflection from Potential Barriers in Bilayer Graphene and Monolayer Transition Metal Dichalcogenides. (arXiv:1911.03077v1 [cond-mat.mes-hall])

P. A. Maksym, H. Aoki
Transmission through potential barriers in bilayer graphene and transition metal dichalcogenides is shown to be valley asymmetric because of the low symmetry of the total Hamiltonian. In the total external reflection regime the transmission is 100% valley polarized in bilayer graphene and 100% spin and valley polarized in transition metal dichalcogenides, except for exponentially small corrections. The experimental requirements for using this effect to make valley and spin polarizers are described. Symmetry relations that may be useful for detecting valley polarization are given.

Publisher URL: http://arxiv.org/abs/1911.03077

DOI: arXiv:1911.03077v1

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.