40 citations · 152 across the 11 of their papers we have counts for
9 papers · 1 filter
Ultra-Narrow TaS2 Nanoribbons
Jeffrey D. Cain, Sehoon Oh, Amin Azizi +6
Imposing additional confinement in two-dimensional (2D) materials can yield further control over the associated electronic, optical, and topological properties. However, synthesis…
Stabilization of NbTe3, VTe3, and TiTe3 via Nanotube Encapsulation
Scott Stonemeyer, Jeffrey D. Cain, Sehoon Oh +7
The structure of MX3 transition metal trichalcogenides (TMTs, with M a transition metal and X a chalcogen) is typified by one-dimensional (1D) chains weakly bound together via van…
Observed Metallization of Hydrogen Interpreted as a Band Structure Effect
Mehmet Dogan, Sehoon Oh, Marvin L. Cohen
A recent experimental study of the metallization of hydrogen tracked the direct band gap and vibron frequency via infrared measurements up to ~425 GPa [P. Loubeyre et al., Nature 5…
Emergence of Topologically Non-trivial Spin-polarized States in a Segmented Linear Chain
Thang Pham, Sehoon Oh, Scott Stonemeyer +6
The synthesis of new materials with novel or useful properties is one of the most important drivers in the fields of condensed matter physics and materials science. Discoveries of…
Stability, efficiency, and mechanism of n-type doping by hydrogen adatoms in two-dimensional transition metal dichalcogenides
Sehoon Oh, June Yeong Lim, Seongil Im +1
Mono- and few-layer transition-metal dichalcogenides (TMDCs) provide opportunities for ideal two-dimensional semiconductors for electronic and optoelectronic devices. For electroni…
Metal-insulator transition in quasi-one-dimensional HfTe3 in the few-chain limit
Scott Meyer, Thang Pham, Sehoon Oh +4
The quasi-one-dimensional linear chain compound HfTe3 is experimentally and theoretically explored in the few- to single-chain limit. Confining the material within the hollow core…
Simulating the nanomechanical response of cyclooctatetraene molecules on a graphene device
Sehoon Oh, Michael F. Crommie, Marvin L. Cohen
We investigate the atomic and electronic structures of cyclooctatetraene (COT) molecules on graphene and analyze their dependence on external gate voltage using first-principles ca…
Alternative Stacking Sequences in Hexagonal Boron Nitride
S. Matt Gilbert, Thang Pham, Mehmet Dogan +8
The relative orientation of successive sheets, i.e. the stacking sequence, in layered two-dimensional materials is central to the electronic, thermal, and mechanical properties of…
Torsional instability in the single-chain limit of a transition metal trichalcogenide
Thang Pham, Sehoon Oh, Patrick Stetz +4
We report the synthesis of the quasi-one-dimensional transition metal trichalcogenide NbSe3 in the few chain limit, including the realization of isolated single chains. The chains…