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|Title:||Excitonic collapse in semiconducting transition-metal dichalcogenides|
Castro Neto, A.H.
|Citation:||Rodin, A.S., Castro Neto, A.H. (2013-11-27). Excitonic collapse in semiconducting transition-metal dichalcogenides. Physical Review B - Condensed Matter and Materials Physics 88 (19) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.88.195437|
|Abstract:||Semiconducting transition metal dichalcogenides (STMDC) are two-dimensional (2D) crystals characterized by electron-volt-size band gaps, spin-orbit coupling (SOC), and d-orbital character of its valence and conduction bands. We show that these materials carry unique exciton quasiparticles (electron-hole bound states) with energy within the gap but which can "collapse" in the strong coupling regime by merging into the band structure continuum. The exciton collapse seems to be a generic effect in these 2D crystals. © 2013 American Physical Society.|
|Source Title:||Physical Review B - Condensed Matter and Materials Physics|
|Appears in Collections:||Staff Publications|
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