Probing low-energy hyperbolic polaritons in van der Waals crystals with an electron microscope

Probing low-energy hyperbolic polaritons in van der Waals crystals with an electron microscope

Here the authors adapt a STEM-EELS system to probe energy loss down to 100 meV, and apply it to map phononic states in hexagonal boron nitride, revealing that the electron loss is dominated by hyperbolic phonon polaritons.

Bibliographic Details
Main Authors: Alexander A. Govyadinov, Andrea Konečná, Andrey Chuvilin, Saül Vélez, Irene Dolado, Alexey Y. Nikitin, Sergei Lopatin, Fèlix Casanova, Luis E. Hueso, Javier Aizpurua, Rainer Hillenbrand
Format: Article
Language:English
Published: Nature Portfolio 2017-07-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-017-00056-y

Internet

https://doi.org/10.1038/s41467-017-00056-y

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