M. Usman

Long-Range Surface-Assisted Molecule-Molecule Hybridization.

Marina Castelli, Jack Hellerstedt, Cornelius Krull, Spiro Gicev, Lloyd CL Hollenberg, Muhammad Usman, Agustin Schiffrin

Journal article  |  2021  |  Small

Metalated phthalocyanines (Pc's) are robust and versatile molecular complexes, whose properties can be tuned by changing their fun..

Valley interference and spin exchange at the atomic scale in silicon

B Voisin, J Bocquel, A Tankasala, M Usman, J Salfi, R Rahman, MY Simmons, LCL Hollenberg, S Rogge

Journal article  |  2020  |  Nature Communications

Tunneling is a fundamental quantum process with no classical equivalent, which can compete with Coulomb interactions to give rise ..

Tunable bandgap and isotropic light absorption from bismuth-containing GaAs core–shell and multi-shell nanowires

Muhammad Usman

Journal article  |  2020  |  Nanoscale

Semiconductor core–shell nanowires based on the GaAs substrate are the building blocks of many photonic, photovoltaic and electron..

Epitaxial Formation of SiC on (100) Diamond

Alexander Tsai, Alireza Aghajamali, Nikolai Dontschuk, Brett C Johnson, Muhammad Usman, Alex K Schenk, Michael Sear, Christopher I Pakes, Lloyd CL Hollenberg, Jeffrey C McCallum, Sergey Rubanov, Anton Tadich, Nigel A Marks, Alastair Stacey

Journal article  |  2020  |  ACS Applied Electronic Materials

We demonstrate locally the coherent formation of silicon carbide (SiC) on diamond, a rare example of heteroepitaxy with a lattice ..

Framework for atomic-level characterisation of quantum computer arrays by machine learning

Muhammad Usman, Yi Zheng Wong, Charles D Hill, Lloyd CL Hollenberg

Journal article  |  2020  |  npj Computational Materials

Atomic-level qubits in silicon are attractive candidates for large-scale quantum computing; however, their quantum properties and ..

Towards low-loss telecom-wavelength photonic devices by designing GaBixAs1-x/GaAs core-shell nanowires

Muhammad Usman

Journal article  |  2019  |  Nanoscale

Nanowires are versatile nanostructures, which allow an exquisite control over bandgap energies and charge carrier dynamics making ..

Atomistic tight binding study of quantum confined Stark effect in GaBixAs1-x/GaAs quantum wells

Muhammad Usman

Journal article  |  2019  |  Journal of Physics Condensed Matter

Recently, there has been tremendous research interest in novel bismide semiconductor materials (such as GaBixAs1-x) for wavelength..

Unusual bandgap bowing in highly mismatched ZnOS alloys: Atomistic tight-binding band anti-crossing model

Saad M Alqahtani, Muhammad Usman, Shaikh S Ahmed

Journal article  |  2019  |  Journal of Applied Physics

An atomistic band anticrossing (BAC) model is developed and used to study “unusual bowing” in energy bandgap and its dependence on..

Global, regional, and national burden of neurological disorders, 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016

Valery L Feigin, Emma Nichols, Tahiya Alam, Marlena S Bannick, Ettore Beghi, Natacha Blake, William J Culpepper, E Ray Dorsey, Alexis Elbaz, Richard G Ellenbogen, James L Fisher, Christina Fitzmaurice, Giorgia Giussani, Linda Glennie, Spencer L James, Catherine Owens Johnson, Nicholas J Kassebaum, Giancarlo Logroscino, Benoit Marin, W Cliff Mountjoy-Venning, et al.

Journal article  |  2019  |  Lancet Neurology

Impact of Disorder on the Optoelectronic Properties of GaNyAs1-x-yBix Alloys and Heterostructures

Muhammad Usman, Christopher A Broderick, Eoin P O'Reilly

Journal article  |  2018  |  Physical Review Applied