Takashi Taniguchi

Dual-Mode Exciton Coupling in Epitaxially Registered Organic–Inorganic 2D Heterocrystals

Abstract Two-dimensional (2D) heterocrystals comprising molecules and semiconductors can serve as an ideal platform for studying interfacial excitons and for future optoelectronic applications, yet the energy and charge flow across these atomically sharp interfaces remain unclear...

Probing spin order via magnon transmission across quantum Hall ferromagnet heterojunctions

Source data for S. H. Lee et al., “Probing spin order via magnon transmission across quantum Hall ferromagnet heterojunctions,” Nature Communications (2026), https://doi.org/10.1038/s41467-026-79281-3.

Stacking-Order-Dependent Electronic Properties of MoTe2/WSe2 Moire Bilayers

Abstract Transition metal dichalcogenide (TMD) moiré bilayers have realized a wide range of strongly correlated and topological phenomena. The physics in these materials is often sensitive to the interlayer stacking order. Polarization-resolved optical second harmonic generation...

Alloy engineering of excitonic properties in TMD monolayers

We investigate monolayer MoS$_{2x}$Se$_{2(1-x)}$ alloys across the full composition range using optical spectroscopy. We demonstrate continuous tuning of the optical gap over $\sim$0.35 eV, accompanied by a systematic reduction of the B--A exciton splitting, in agreement with den...

Electrically reconfigurable dipolar polaritons with highly tunable nonlinearity in a homobilayer microcavity

Active control over optical nonlinearity in solid-state systems is central to unlocking exotic many-body phenomena and photonic devices. While exciton-polaritons in transition metal dichalcogenides (TMDs) offer a promising platform, their practical utility is impeded by fixed int...

Visualizing symmetry-broken Chern insulators and their quantum melting

In the presence of a magnetic field, electronic states of moiré quantum materials develop a Hofstadter spectrum that provides a distinctive setting for studying the interplay between band topology and strong electron-electron interaction. Using scanning tunneling microscopy, we s...