electron diffraction examination of materialsequationsteaching/ electron diffractionBragg equationphysics teaching/ A0140 Education A0150 Educational aids A6114 Electron determination of structuresThe author points out that many standard textbooks gave a less than complete account of the Bragg equation in ...
Electrons originating from shallow depths also make the most effective contribution to diffraction and hence a high tilt angle improves the diffraction pattern signal to background ratio [271]. Those that satisfy the Bragg equation for diffraction describe conical trajectories for each lattice plane. ...
We construct an electron optical system to investigate Bragg diffraction (the crystal lattice plane, $10^{-2}$-$10^{-3}$ rad) with the objective lens turned off by adjusting the current in the intermediate lenses. A crossover was located on the selected-area aperture plane. Thus, the dar...
Low-energy electron diffraction intensities from the clean copper (001) surface the electron energy band structure for copper accounts for most intense peak in the curves: the first Bragg peak around 1 eV in the 00 beam intensity... S Andersson - 《Surface Science》 被引量: 41发表: 1969年 ...
Systematic variations of Bragg peak position in neutron diffraction patternsadjustment of factorsadjusted orthogonalityfactorial experimentnonorthogonal designpairwise orthogonalityA direct matrix solution of the Boltzmann transport equation is developed to investigate impact ionization and other hot carrier phenomena...
In free space, electrons undergo inelastic scattering in the presence of ponderomotive potentials generated by light pulses and standing light waves. The resulting modulated electron energy spectrum can exhibit the formation of discrete energy sidebands when multiple light beams are employed. Here, we ...
WilliamHenryBragg1862–1942NobelPrizeinPhysics1915 X-raydiffractioninacrystal.LikeanelectronbeamanX-rayhasitsownwavelengthwhichisproportionaltoitsenergy(10–0.01nm).IfaknownwavelengthlisusedandtheBragg‟sanglecanbemeasuredorinferredthenthed-spacingofacrystalofunknowncompositioncanbecalculated.Thisistheprinciple...
electron diffraction8,9,10,11,12,13, involving transverse changes of the electron momentum that preserve the electron coherence. Such effects were not previously related to electron radiation. For context, the inelastic process of electron radiation typically involves recoil in the longitudinal electron...
Bragg diffraction from a crystalline sample can be used to coherently split a beam of electrons. In fact, crystalline electron beam-splitters were adopted in the first electron interferometry device developed by Marton in the 1950s, and have been implemented in a number of other electron interferom...
Electron probe microanalysis(EPMA) was performed on a Jeol JXA-8600 spectrometer. Powder X-ray diffraction (XRD) patterns were collected using a Philips 1840 powder diffractometer with Cu Ka radiation (40kV, 25mA). N2adsorption isotherms were measured at 77K using a Micromeritics Gemini 2375 anal...