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Superlubricity through graphene multilayers between Ni(111) surfaces
S. Cahangirov, S. Ciraci, V. Ongun Özçelik
A single graphene layer placed between two parallel Ni(111) surfaces screens the strong attractive force and results in a significant reduction of adhesion and sliding friction. Wh…
On the electronic structure of silicene on Ag substrate: strong hybridization effects
Seymur Cahangirov, Martha Audiffred, Peizhe Tang +4
The electronic structure of the recently synthesised (3x3) reconstructed silicene on (4x4) Ag(111) is investigated by first-principles calculations. New states emerge due to the st…
Phonon Softening and Direct to Indirect Bandgap Crossover in Strained Single Layer MoSe2
S. Horzum, H. Sahin, S. Cahangirov +4
Motivated by recent experimental observations of Tongay et al. [Tongay et al., Nano Letters, 12(11), 5576 (2012)] we show how the electronic properties and Raman characteristics of…