Results 41 to 50 of about 34,297 (264)

High-extinction VIPA-based Brillouin spectroscopy of turbid biological media

open access: yes, 2016
Brillouin microscopy has recently emerged as powerful technique to characterize the mechanical properties of biological tissue, cell and biomaterials.
Fiore, Antonio   +4 more
core   +1 more source

Effect of quantum confinement on the dielectric function of PbSe [PDF]

open access: yes, 2004
Monolayers of lead selenide nanocrystals of a few nanometers in height have been made by electrodeposition on a Au(111) substrate. These layers show a thickness-dependent dielectric function, which was determined using spectroscopic ellipsometry.
Allan, G.   +5 more
core   +4 more sources

Microscopic correlation between chemical and electronic states in epitaxial graphene on SiC(000-1) [PDF]

open access: yes, 2011
We present energy filtered electron emission spectromicroscopy with spatial and wave-vector resolution on few layer epitaxial graphene on SiC$(000-1) grown by furnace annealing.
Barrett, N.   +8 more
core   +3 more sources

Mapping Unoccupied Electronic States of Freestanding Graphene by Angle-Resolved Low-Energy Electron Transmission [PDF]

open access: yes, 2016
We report angle-resolved electron transmission measurements through freestanding graphene sheets in the energy range of 18 to 30 eV above the Fermi level.
Escher, Conrad   +4 more
core   +1 more source

Intercalated Rare-Earth Metals under Graphene on SiC [PDF]

open access: yes, 2018
Intercalation of rare earth metals ($RE$ = Eu, Dy, and Gd) is achieved by depositing the $RE$ metal on graphene that is grown on silicon-carbide (SiC) and by subsequent annealing at high temperatures to promote intercalation.
Anderson, Nathaniel A.   +4 more
core   +4 more sources

Raman-scattering study of the phonon dispersion in twisted bi-layer graphene

open access: yes, 2013
Bi-layer graphene with a twist angle \theta\ between the layers generates a superlattice structure known as Moir\'{e} pattern. This superlattice provides a \theta-dependent q wavevector that activates phonons in the interior of the Brillouin zone.
Achete, C. A.   +4 more
core   +1 more source

Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays [PDF]

open access: yes, 2001
The domain structure and the coercivity of epitaxial Fe(100) circular dot arrays of different diameters and separations have been studied using magnetic force microscopy (MFM) and focused magneto-optical Kerr effect (MOKE).
Bland, J.A.C.   +10 more
core   +1 more source

Corneal Biomechanics: A Paradigm shift in Studying Corneal Pathology

open access: yesDelhi Journal of Ophthalmology, 2017
Biomechanics links corneal structure to its function. An area of intense research, corneal biomechanics can distinguish normal from ectatic corneas and has applications in various fields including cataract surgery, intraocular pressure measurement and ...
Shruti Kochar Maru   +2 more
doaj   +1 more source

Protected nodal electron pocket from multiple-Q ordering in underdoped high temperature superconductors

open access: yes, 2011
A multiple wavevector (Q) reconstruction of the Fermi surface is shown to yield a profoundly different electronic structure to that characteristic of single wavevector reconstruction, despite their proximity in energy.
Harrison, N., Sebastian, S. E.
core   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado   +6 more
wiley   +1 more source

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