50 citations · 181 across the 13 of their papers we have counts for
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Coupling between Quantum Hall Edge Channels on Opposite Sides of a Hall Bar
Ngoc Han Tu, Masayuki Hashisaka, Takeshi Ota +4
We investigate the coupling between quantum Hall (QH) edge channels (ECs) located at opposite sides of a 50-um-wide Hall bar by exciting a charged wavepacket in one EC and detectin…
Plasmon Confinement by Carrier Density Modulation in Graphene
Ngoc Han Tu, Makoto Takamura, Yui Ogawa +2
We investigate plasmon resonances in graphene with periodic carrier density modulation. The period is 8 um, and each period consists of 1.7- and 6.3-um-wide ribbons with different…
Charge Fractionalization in Artificial Tomonaga-Luttinger Liquids with Controlled Interaction Strength
Paul Brasseur, Ngoc Han Tu, Yoshiaki Sekine +4
We investigate charge fractionalizations in artificial Tomonaga-Luttinger liquids (TLLs) composed of two capacitively coupled quantum Hall edge channels (ECs) in graphene. The inte…