Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Grewal, Abhishek"'
In scanning tunneling microscopy of molecules, an insulating buffer layer is often introduced to reduce interactions between adsorbed molecules and the substrate. Focusing on tunneling through the molecule's electronic transport gap, we demonstrate t
Externí odkaz:
http://arxiv.org/abs/2404.11956
Using scanning tunneling microscopy (STM), we experimentally and theoretically investigate isolated platinum phthalocyanine (PtPc) molecules adsorbed on atomically thin NaCl(100) vapor deposited on Au(111). We obtain good agreement between theory and
Externí odkaz:
http://arxiv.org/abs/2401.14937
Publikováno v:
Nat. Commun. 13, 981 (2022)
The alkali halides are ionic compounds. Each alkali atom donates an electron to a halogen atom, leading to ions with full shells. The valence band is mainly located on halogen atoms, while, in a traditional picture, the conduction band is mainly loca
Externí odkaz:
http://arxiv.org/abs/2310.14070
Publikováno v:
ACS Nano, 17, 14, 13176 (2023)
We report on scanning tunneling microscopy (STM) topographs of individual metal phthalocyanines (MPc) on a thin salt (NaCl) film on a gold substrate, at tunneling energies within the molecule's electronic transport gap. Theoretical models of increasi
Externí odkaz:
http://arxiv.org/abs/2310.13962
Autor:
Rosławska, Anna, Merino, Pablo, Grewal, Abhishek, Leon, Christopher C., Kuhnke, Klaus, Kern, Klaus
Publikováno v:
Nano Lett., 21, 17, 7221-7227 (2021)
We study fluctuations in plasmonic electroluminescence at the single-atom limit profiting from the precision of a low-temperature scanning tunneling microscope. First, we investigate the influence of a controlled single-atom transfer on the plasmonic
Externí odkaz:
http://arxiv.org/abs/2102.11671
Autor:
Rosławska, Anna, Merino, Pablo, Leon, Christopher C., Grewal, Abhishek, Etzkorn, Markus, Kuhnke, Klaus, Kern, Klaus
Publikováno v:
Nano Lett., 21, 11, 4577-4583 (2021)
Light sources on the scale of single molecules can be addressed and characterized on their proper sub-nanometer scale by scanning tunneling microscopy induced luminescence (STML). Such a source can be driven by defined short charge pulses while the l
Externí odkaz:
http://arxiv.org/abs/2012.09566
Autor:
Lawrence, James, Brandimarte, Pedro, Berdonces, Alejandro, Mohammed, Mohammed S. G., Grewal, Abhishek, Leon, Christopher C., Sanchez-Portal, Daniel, de Oteyza, Dimas G.
We extensively characterize the electronic structure of ultra-narrow graphene nanoribbons (GNRs) with armchair edges and zig-zag termini that have 5 carbon atoms across their width (5-AGNRs), as synthesised on Au(111). Scanning tunnelling spectroscop
Externí odkaz:
http://arxiv.org/abs/1912.12094
Autor:
Leon, Christopher C., Gunnarsson, Olle, de Oteyza, Dimas G., Rosławska, Anna, Merino, Pablo, Grewal, Abhishek, Kuhnke, Klaus, Kern, Klaus
A hallmark of quantum control is the ability to manipulate quantum emission at the nanoscale. Through scanning tunneling microscopy induced luminescence (STML) we are able to generate plasmonic light originating from inelastic tunneling processes tha
Externí odkaz:
http://arxiv.org/abs/1909.08117
Autor:
Merino, Pablo, Rosławska, Anna, Leon, Christopher C., Grewal, Abhishek, Große, Christoph, González, Cesar, Kuhnke, Klaus, Kern, Klaus
Photon statistics is a powerful tool for characterizing the emission dynamics of nanoscopic systems and their photophysics. Recent advances that combine correlation spectroscopy with scanning tunneling microscopy-induced luminescence (STML) have allo
Externí odkaz:
http://arxiv.org/abs/1809.07658
Autor:
Leon, Christopher, Rosławska, Anna, Grewal, Abhishek, Gunnarsson, Olle, Kuhnke, Klaus, Kern, Klaus
Generating correlated photon pairs at the nanoscale is a prerequisite to creating highly integrated optoelectronic circuits that perform quantum computing tasks based on heralded single-photons. Here we demonstrate fulfilling this requirement with a
Externí odkaz:
http://arxiv.org/abs/1805.10234