84 citations · 197 across the 5 of their papers we have counts for
5 papers
The origin of Raman D Band: Bonding and Antibonding Orbitals in Graphene
Ken-ichi Sasaki, Yasuhiro Tokura, Tetsuomi Sogawa
In Raman spectroscopy of graphite and graphene, the band at cm is used as the indication of the dirtiness of a sample. However, our analysis suggests that the…
Decay and Frequency Shift of Inter and Intravalley Phonons in Graphene -Dirac Cone Migration-
K. Sasaki, K. Kato, Y. Tokura +2
By considering analytical expressions for the self-energies of intervalley and intravalley phonons in graphene, we describe the behavior of D, 2D, and D Raman bands with changes…
Pseudospin for Raman D Band in Armchair Graphene Nanoribbons
K. Sasaki, K. Kato, Y. Tokura +2
By analytically constructing the matrix elements of an electron-phonon interaction for the band in the Raman spectra of armchair graphene nanoribbons, we show that pseudospin a…
Theory of optical transitions in graphene nanoribbons
K. Sasaki, K. Kato, Y. Tokura +2
Matrix elements of electron-light interactions for armchair and zigzag graphene nanoribbons are constructed analytically using a tight-binding model. The changes in wavenumber ($Δn…
Charged exciton emission at 1.3 m from single InAs quantum dots grown by metalorganic chemical vapor deposition
N. I. Cade, H. Gotoh, H. Kamada +4
We have studied the emission properties of self-organized InAs quantum dots (QDs) grown in an InGaAs quantum well by metalorganic chemical vapor deposition. Low-temperature photolu…