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Two-step flux synthesis of ultrapure transition metal dichalcogenides
Song Liu, Yang Liu, Luke Nemetz Holtzman +10
Here, we describe synthesis of TMD crystals using a two-step flux growth method that eliminates a major potential source of contamination. Detailed characterization of TMDs grown b…
Pressure induced topological quantum phase transition in Weyl semimetal T_d-MoTe_2
Z. Guguchia, A. M. dos Santos, F. O. von Rohr +11
We report the pressure (p_max = 1.5 GPa) evolution of the crystal structure of the Weyl semimetal T_d-MoTe_2 by means of neutron diffraction experiments. We find that the fundament…
Enhanced nonlinear interaction of polaritons via excitonic Rydberg states in monolayer WSe2
Jie Gu, Valentin Walther, Lutz Waldecker +7
Strong optical nonlinearities play a central role in realizing quantum photonic technologies. In solid state systems, exciton-polaritons, which result from the hybridization of mat…
Hundredfold Enhancement of Light Emission via Defect Control in Monolayer Transition-Metal Dichalcogenides
D. Edelberg, D. Rhodes, A. Kerelsky +18
Two dimensional (2D) transition-metal dichalcogenide (TMD) based semiconductors have generated intense recent interest due to their novel optical and electronic properties, and pot…
Magnetism in Semiconducting Molybdenum Dichalcogenides
Z. Guguchia, A. Kerelsky, D. Edelberg +18
Transition metal dichalcogenides (TMDs) are interesting for understanding fundamental physics of two-dimensional materials (2D) as well as for many emerging technologies, including…
Coexistence of Weyl Physics and Planar Defects in Semimetals TaP and TaAs
Tiglet Besara, Daniel A. Rhodes, Kuan-Wen Chen +10
We report a structural study of the Weyl semimetals TaAs and TaP, utilizing diffraction and imaging techniques, where we show that they contain a high density of defects, leading t…
Non-stoichiometry and Defects in the Weyl Semimetals TaAs, TaP, NbP, and NbAs
Tiglet Besara, Daniel Rhodes, Kuan-Wen Chen +6
We report a structural study of the Weyl semimetals TaAs, TaP, NbP, and NbAs, utilizing diffraction techniques (single crystal x-ray diffraction and energy dispersive spectroscopy)…