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34 papers · 1 filter
Quadrupolar and Dipolar Excitons in Bilayer 2-MoSe
Shun Feng, Aidan J. Campbell, Bibi Mary Francis +6
We report the experimental observation of quadrupolar exciton states in the reflectance contrast spectrum of 2-stacked bilayer MoSe. The application of a vertical electric f…
Highly tunable moiré superlattice potentials in twisted hexagonal boron nitrides
Kwanghee Han, Minhyun Cho, Taehyung Kim +8
Moiré superlattice of twisted hexagonal boron nitride (hBN) has emerged as an advanced atomically thin van der Waals interfacial ferroelectricity platform. Nanoscale periodic ferro…
Direct Observation and Analysis of Low-Energy Magnons with Raman Spectroscopy in Atomically Thin NiPS3
Woongki Na, Pyeongjae Park, Siwon Oh +6
Van der Waals (vdW) magnets have rapidly emerged as a fertile playground for novel fundamental physics and exciting applications. Despite the impressive developments over the past…
γ-GeSe:a new hexagonal polymorph from group IV-VI monochalcogenides
Sol Lee, Joong-Eon Jung, Han-gyu Kim +12
The family of group IV-VI monochalcogenides has an atomically puckered layered structure, and their atomic bond configuration suggests the possibility for the realization of variou…
Structural Phase Transition and Interlayer Coupling in Few-Layer 1T' and Td MoTe2
Yeryun Cheon, Soo Yeon Lim, Kangwon Kim +1
We performed polarized Raman spectroscopy on mechanically exfoliated few-layer MoTe2 samples and observed both 1T' and Td phases at room temperature. Few-layer 1T' and Td MoTe2 exh…
Boosting quantum yields in 2D semiconductors via proximal metal plates
Yongjun Lee, Anshuman Kumar, Johnathas D'arf Severo Forte +8
Monolayer transition metal dichalcogenides (1L-TMDs) have tremendous potential as atomically thin, direct bandgap semiconductors that can be used as convenient building blocks for…