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Ratchet effect in spatially modulated bilayer graphene: Signature of hydrodynamic transport
Erwin Mönch, Sergey O. Potashin, Katja Lindner +10
We report on the observation of the ratchet effect -- generation of direct electric current in response to external terahertz (THz) radiation -- in bilayer graphene, where inversio…
Trions in MoS are quantum superpositions of intra- and intervalley spin states
Julian Klein, Matthias Florian, Alexander Hötger +10
We report magneto-photoluminescence spectroscopy of gated MoS monolayers in high magnetic fields to 28 T. At B = 0T and electron density , we observe thre…
Phonon-Enhanced Nonlinearities in Hexagonal Boron Nitride
Jared S. Ginsberg, M. Mehdi Jadidi, Jin Zhang +10
We investigate optical nonlinearities that are induced and enhanced due to the strong phonon resonance in hexagonal boron nitride. We predict and observe large sub-picosecond durat…
Long Phonon Mean Free Paths Observed in Cross-plane Thermal-Conductivity Measurements of Exfoliated Hexagonal Boron Nitride
Gabriel R. Jaffe, Keenan J. Smith, Kenji Watanabe +4
Sub-micron-thick layers of hexagonal boron nitride (hBN) exhibit high in-plane thermal conductivity, useful optical properties, and serve as dielectric encapsulation layers with lo…