منابع مشابه
Strain and phonon shifts in GaAs12xPx alloys
We have studied the influence of an in-plane ~001! strain on the energy position of the long wavelength optical modes of GaAs12xPx alloys. These alloys have a two mode behavior. We have observed that the strain-induced shift of the Raman peaks corresponding to the GaAs-like vibration is greater than that of the GaP-like vibration. This result shows that the two modes are not affected in the sam...
متن کاملPhonon shifts and strains in strain
We have measured the phonon frequencies (Raman technique) and the strains (x-ray rocking curve technique) of (Gal _ x lnx ) As films on GaAs (i 00) substrates. Films with various x values and various thicknesses were studied. The films range from perfect epitaxial to those that have relaxed by different amounts. The strain-induced frequency shift was calculated for each sample using the phonon ...
متن کاملStrain and Hole Gas Induced Raman Shifts in Ge-Si(x)Ge(1-x) Core-Shell Nanowires Using Tip-Enhanced Raman Spectroscopy.
We report tip-enhanced and conventional Raman spectroscopy studies of Ge-Si0.5Ge0.5 core-shell nanowires in which we observe two distinct Ge-Ge vibrational mode Raman peaks associated with vibrations in the Ge nanowire core and at the Ge-Si0.5Ge0.5 interface at which a quantum-confined hole gas is formed. Tip enhanced Raman measurements show dramatically increased sensitivity to the modes at th...
متن کاملStress-Strain Field and Theoretical Analysis of RC Bridge
In this paper, a reinforced concrete(RC) bridge built in an interchange, in the city of Kerman (a city located in south of Iran) is examined by the Structural Health Monitoring (SHM) system. During the construction of this bridge such as; the main beams, slab, and retaining walls, some Electrical Strain Gauges were mounted on the main reinforcements at different locations within the body of thi...
متن کاملInvestigation of stress and heat strain in asphalt workers
Heat stress is one of the harmful factors in workplaces. Asphalt workers are exposed to thermal stress due to the open environment and process. The aim of this study was to assess the heat stress and strain in asphalt workers. This study was conducted on 29 employees of asphalt workstation. The heat stress was measured based on Wet-Bulb Globe Temperature (WBGT). Also, physiological parameters s...
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ژورنال
عنوان ژورنال: Zeitschrift für Kristallographie - Crystalline Materials
سال: 2018
ISSN: 2196-7105,2194-4946
DOI: 10.1515/zkri-2018-2112