111 citations · 345 across the 12 of their papers we have counts for
12 papers
Quantifying the temperature-dependent yields of N and NH formation in vacuum-ultraviolet-irradiated NH ice
P. Samarth, G. Fedoseev, S. Ioppolo +3
Gas--grain astrochemical models predict that a substantial fraction of elemental nitrogen in dense cores and protoplanetary disks is locked in molecular nitrogen (N), in the ga…
In situ characterization of volatile and refractory hydrocarbons produced by UV photolysis of interstellar CH ice
P. Samarth, G. Fedoseev, M. Bulak +5
Acetylene (CH) is commonly observed in star-forming regions, young stellar objects, and the Solar System. Laboratory and theoretical studies have linked this simplest alkyn…
An interstellar energetic and non-aqueous pathway to peptide formation
Alfred Thomas Hopkinson, Ann Mary Wilson, Joe Pitfield +13
The origin of the molecular building blocks of life is a central question in science. A few -amino acids such as glycine, the simplest proteinogenic amino acid, have been detect…
Anharmonic infrared spectra of cationic pyrene and superhydrogenated derivatives
Zeyuan Tang, Frederik G. Doktor, Rijutha Jaganathan +4
Studying the anharmonicity in the infrared (IR) spectra of polycyclic aromatic hydrocarbons (PAHs) at elevated temperatures is important to understand vibrational features and chem…
Water Nucleation via Transient Bonds to Oxygen Functionalized Graphite
Frederik G. Doktor, Niels M. Mikkelsen, Signe Kyrkjebø +5
We present a study the initial stages of ice growth on pristine and oxygen-functionalized highly oriented pyrolytic graphite (O-HOPG), combining low-temperature scanning tunneling…
Top-down formation of ethylene from fragmentation of superhydrogenated polycyclic aromatic hydrocarbons
Zeyuan Tang, Frederik Doktor S. Simonsen, Rijutha Jaganathan +4
Fragmentation is an important decay mechanism for polycyclic aromatic hydrocarbons (PAHs) under harsh interstellar conditions and represents a possible formation pathway for small…
High Crystallinity and Decoupling of Graphene on a Metal: Reduced Coulomb Screening and Tunable pn-Junctions
Søren Ulstrup, Mie Andersen, Marco Bianchi +4
High quality epitaxial graphene films can be applied as templates for tailoring graphene-substrate interfaces that allow for precise control of the charge carrier behavior in graph…
Electron-phonon coupling in quasi free-standing graphene
Jens Christian Johannsen, Søren Ulstrup, Marco Bianchi +8
Quasi free-standing monolayer graphene can be produced by intercalating species like oxygen or hydrogen between epitaxial graphene and the substrate crystal. If the graphene is ind…
High-temperature behaviour of supported graphene: electron-phonon coupling and substrate-induced doping
Søren Ulstrup, Marco Bianchi, Richard Hatch +5
One of the salient features of graphene is the very high carrier mobility that implies tremendous potential for use in electronic devices. Unfortunately, transport measurements fin…
Stability of the Bi2Se3(111) topological state: electron-phonon and -defect scattering
Richard C. Hatch, Marco Bianchi, Dandan Guan +6
The electron dynamics of the topological surface state on Bi2Se3(111) is investigated by temperature-dependent angle-resolved photoemission. The electron-phonon coupling strength i…
Structure and stability of small H clusters on graphene
Zeljko Sljivancanin, Mie Andersen, Liv Hornekaer +1
The structure and stability of small hydrogen clusters adsorbed on graphene is studied by means of Density Functional Theory (DFT) calculations. Clusters containing up to six H ato…
Electron-phonon coupling in potassium-doped graphene: Angle-resolved photoemission spectroscopy
M. Bianchi, E. D. L. Rienks, S. Lizzit +4
The electron-phonon coupling in potassium-doped graphene on Ir(111) is studied via the renormalization of the pi* band near the Fermi level, using angle-resolved photoemission spec…