1.1k citations · 3k across the 26 of their papers we have counts for
26 papers
Probing Plasmonic Oscillations in 2D Moiré Nanocrystal Superlattices by Low-Loss EELS
Swarnendu Das, Shengsong Yang, Kevin N. Moser +5
Electron energy loss spectroscopy (EELS) has been established as a powerful analytical technique for investigating the oxidation state, band structure, and dielectric properties of…
Theory of momentum-resolved magnon electron energy loss spectra: The case of Yttrium Iron Garnet
Julio A. do Nascimento, Phil J. Hasnip, S. A. Cavill +5
We explore the inelastic spectra of electrons impinging in a magnetic system. The methodology here presented is intended to highlight the charge-dependent interaction of the electr…
Confined magnon dispersion in ferromagnetic and antiferromagnetic thin films in a second quantization approach: the case of Fe and NiO
Julio A. do Nascimento, Adam Kerrigan, S. A. Cavill +4
We present a methodology based on the calculation of the inelastic scattering from magnons via the spin scattering function in confined geometries such as thin films using a second…
Unveiling the impact of temperature on magnon diffuse scattering detection in the transmission electron microscope
José Ángel Castellanos-Reyes, Paul Zeiger, Anders Bergman +4
Magnon diffuse scattering (MDS) signals could be studied with high spatial resolution in scanning transmission electron microscopy (STEM), thanks to recent technological progress i…
Tuning band alignment at a semiconductor-crystalline oxide heterojunction via electrostatic modulation of the interfacial dipole
M. Chrysler, J. Gabel, T. -L. Lee +14
We demonstrate that the interfacial dipole associated with bonding across the SrTiO3/Si heterojunction can be tuned through space charge, thereby enabling the band alignment to be…
Magnon diffuse scattering in scanning transmission electron microscopy
Keenan Lyon, Anders Bergman, Paul Zeiger +4
We present a theory and a simulation of thermal diffuse scattering due to the excitation of magnons in scanning transmission electron microscopy. The calculations indicate that mag…
Electronic band structure of narrow-bandgap p-n nanojunctions in heterostructured nanowires measured by electron energy loss spectroscopy
Reza R. Zamani, Fredrik S. Hage, Alberto Eljarrat +3
The electronic band structure of complex nanostructured semiconductors has a considerable effect on the final electronic and optical properties of the material and, ultimately, on…
Plasmons in MoS2 Studied via Experimental and Theoretical Correlation of Energy Loss Spectra
Eoin Moynihan, Stefan Rost, Eoghan O'Connell +3
Two dimensional materials offer a path forward for smaller and more efficient devices. Their optical and electronic properties give way to beat the limits set in place by Moore's L…
Heterotwin Zn3P2 superlattice nanowires: the role of indium insertion in the superlattice formation mechanism and their optical properties
Simon Escobar Steinvall, Lea Ghisalberti, Reza R. Zamani +9
Zinc phosphide, Zn3P2, nanowires constitute prospective building blocks for next generation solar cells due to the combination of suitable optoelectronic properties and an abundanc…
Bandgap in orthorhombic thin lead halide perovskite (CsPbBr3) nanosheets measured from STEM-EELS
Rosaria Brescia, Stefano Toso, Quentin Ramasse +4
Inorganic lead halide perovskites are promising candidates for optoelectronic applications, due to their bandgap tunability, high photoluminescence quantum yield, and narrow emissi…
Enhanced spin-orbit coupling in a heavy metal via molecular coupling
Satam Alotibi, B. J. Hickey, Gilberto Teobaldi +11
Heavy metals are key to spintronics because of their high spin-orbit coupling (SOC) leading to efficient spin conversion and strong magnetic interactions. When C60 is deposited on…
Imaging localized plasmon resonances in vacancy doped Cu3-xP semiconductor nanocrystals with STEM-EELS
Giovanni Bertoni, Rosaria Brescia, Luca De Trizio +2
Copper binary compounds are often intrinsic p-type semiconductors due to the presence of Cu(I) vacancies, with corresponding hole carriers in the valence band. If the free carrier…
Theory of momentum-resolved phonon spectroscopy in the electron microscope
R. J. Nicholls, F. S. Hage, D. G. McCulloch +3
We provide a theoretical framework for the prediction and interpretation of momentum dependent phonon spectra due to coherent inelastic scattering of electrons. We complete the app…
Towards atomically precise manipulation of 2D nanostructures in the electron microscope
Toma Susi, Demie Kepaptsoglou, Yung-Chang Lin +4
Despite decades of research, the ultimate goal of nanotechnology--top-down manipulation of individual atoms--has been directly achieved with only one technique: scanning probe micr…
Probing the local nature of excitons and plasmons in few-layer MoS2
Hannah Catherine Nerl, Kirsten Trøstrup Winther, Fredrik Sydow Hage +6
Excitons and plasmons are the two most fundamental types of collective electronic excitations occurring in solids. Traditionally, they have been studied separately using bulk techn…
Single-Atom Scale Structural Selectivity in Te Nanowires Encapsulated inside Ultra-Narrow, Single-Walled Carbon Nanotubes
Paulo V. C. Medeiros, Samuel Marks, Jamie M. Wynn +5
Extreme nanowires (ENs) represent the ultimate class of crystals: They are the smallest possible periodic materials. With atom-wide motifs repeated in one dimension (1D), they offe…
Interface-induced Polarization in SrTiO-LaCrO Superlattices
Ryan B. Comes, Steven R. Spurgeon, Steve M. Heald +7
Epitaxial interfaces and superlattices comprised of polar and non-polar perovskite oxides have generated considerable interest because they possess a range of desirable properties…
Liquid exfoliation of solvent-stabilised black phosphorus: applications beyond electronics
Damien Hanlon, Claudia Backes, Evie Doherty +20
Few layer black phosphorus is a new two-dimensional material which is of great interest for applications, mainly in electronics. However, its lack of stability severely limits our…
Atomically Resolved Imaging of Highly Ordered Alternating Fluorinated Graphene
Reza J. Kashtiban, M. Adam Dyson, Rahul R. Nair +6
One of the most desirable goals of graphene research is to produce ordered 2D chemical derivatives of suitable quality for monolayer device fabrication. Here we reveal, by focal se…
Silicon-carbon bond inversions driven by 60 keV electrons in graphene
Toma Susi, Jani Kotakoski, Demie Kepaptsoglou +8
We demonstrate that 60 keV electron irradiation drives the diffusion of threefold coordinated Si dopants in graphene by one lattice site at a time. First principles simulations rev…
Element-Specific Depth Profile of Magnetism and Stoichiometry at the La0.67Sr0.33MnO3/BiFeO3 Interface
J. Bertinshaw, S. Brück, D. Lott +14
Depth-sensitive magnetic, structural and chemical characterization is important in the understanding and optimization of novel physical phenomena emerging at interfaces of transiti…
Control of Radiation Damage in MoS2 by Graphene Encapsulation
Recep Zan, Quentin M Ramasse, Rashid Jalil +3
Recent dramatic progress in studying various two-dimensional (2D) atomic crystals and their heterostructures calls for better and more detailed understanding of their crystallograp…
Direct Experimental Evidence of Metal-Mediated Etching of Suspended Graphene
Quentin M. Ramasse, Recep Zan, Ursel Bangert +3
Atomic resolution high angle annular dark field imaging of suspended, single-layer graphene, onto which the metals Cr, Ti, Pd, Ni, Al and Au atoms had been deposited was carried ou…
Ruddlesden-Popper faults in LaNiO3/LaAlO3 superlattices
E. Detemple, Q. M. Ramasse, W. Sigle +4
Scanning transmission electron microscopy in combination with electron energy-loss spectroscopy is used to study LaNiO3/LaAlO3 superlattices grown on (La,Sr)AlO4 with varying singl…