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Now showing items 1801-1810 of 2111
Dense packings of spheres in cylinders: Simulations
(2012)
We study the optimal packing of hard spheres in an infinitely long cylinder, using simulated annealing, and compare our results with the analogous problem of packing disks on the unrolled surface of a cylinder. The densest ...
High resolution electron energy loss spectroscopy of clean and hydrogen covered Si(001) surfaces: First principles calculations
(2012)
Surface phonons, conductivities, and loss functions are calculated for reconstructed (2×1), p(2×2) and c(4×2) clean Si(001) surfaces, and (2×1) H and D covered Si(001) surfaces. Surface conductivities perpendicular to the ...
Studies of the faceting of epitaxial molybdenum oxide grown on Mo (110)
(2008)
We show that an oxide film can undergo a periodic self-faceting regime during growth. The oxide growth starts as a bulklike MoO2 surface oxide trilayer that wets the substrate in an orientation thermodynamically forbidden ...
Field sensing in MgO double barrier magnetic tunnel junctions with a superparamagnetic Co50Fe50 free layer
(2012)
Linear response and low frequency noise have been investigated in MgO double barrier magnetic tunnel junctions with a superparamagnetic Co50Fe50 free layer. Linear and hysteresis-free switching was observed for the Co50Fe50 ...
Solution processed, vertically stacked hetero-structured diodes based on liquid-exfoliated WS2 nanosheets: from electrode-limited to bulk-limited behavior
(2022)
Vertically stacked metal–semiconductor-metal heterostructures, based on liquid-processed nanomaterials, hold great potential for various printed electronic applications. Here we describe the fabrication of such devices by ...
Device for filamentous fungi growth monitoring using the multimodal frequency response of cantilevers.
(2014)
Filamentous fungi cause opportunistic infections in hospital patients. A fast assay to detect viable
spores is of great interest. We present a device that is capable of monitoring fungi growth in real time
via the dynamic ...
Study of Kerr Soliton Microcombs in Optical Microresonators
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)
Microresonator-based Kerr optical frequency combs exhibit a spectrum of discrete and equally spaced frequency lines. The comb source is a precise frequency ruler to measure time and distance to extraordinary precision and ...
Toying with physics
(European Physical Society, 2007)
In the early 19th century the popularisation of science became
a vogue, expressed in books that often took the form of ?conversations
on natural philosophy?. They may have echoed the
discourse of the classical dialogue ...
Influence of magnetic fields on cathodic growth of phases in acidic sulphate and acidic copper sulphate systems
(Trinity College (Dublin, Ireland). School of Physics, 2011)
Industrial processes involving copper electrolysis are important in
modern society. In these processes copper ions contained in aqueous
solution are crystallized onto a cathode by the passage of current. Copper
industry ...
Spin transfer torque in Mn3Ga -based ferrimagnetic tunnel junctions from first principles
(2021)
We report on first-principles calculations of spin-transfer torque (STT) in epitaxial magnetic tunnel junctions (MTJs) based on ferrimagnetic tetragonal Mn3Ga electrodes, both as analyzer in a Fe/MgO stack, and also in an ...