Subpeak structure of the lowest-frequency E-symmetry transverse optical phonon in Ba-doped PbTiO3 single crystals
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چکیده
منابع مشابه
A Systematic Optical Study of Phonon Properties in Optimally Doped Bi2Sr2CaCu2O8+δ Single Crystals
Infrared spectroscopy is often used to investigate the question of electron-phonon interaction in ‘bad’ metals, particularly in high Tc cuprates, because both the electronic properties and phonon properties can be studied simultaneously. In view of the renewed suggestion that charge-phonon coupling is the mechanism for superconductivity in high Tc cuprates, charge-phonon interaction needs to be...
متن کاملA systematic optical study of phonon properties in optimally doped Bi2Sr2CaCu2O8+d single crystals
A systematic optical study of infrared-active phonons is carried out for optimally doped Bi2Sr2CaCu2O8+d (Bi2212) single crystals with E-vector along c-axis as well as in the ab-plane at 295K. Strong phonon anisotropy has been observed in our ab-plane conductivity measurements. Ten infrared-active phonons have been observed along c-axis. Many of these c-axis infrared-active phonons have energie...
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in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
15 صفحه اولthe effects of changing roughness on the flow structure in the bends
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Study of flux pinning mechanism under hydrostatic pressure in optimally doped (Ba,K)Fe2As2 single crystals
Strong pinning depends on the pinning force strength and number density of effective defects. Using the hydrostatic pressure method, we demonstrate here that hydrostatic pressure of 1.2 GPa can significantly enhance flux pinning or the critical current density (Jc) of optimally doped Ba0.6K0.4Fe2As2 crystals by a factor of up to 5 in both low and high fields, which is generally rare with other ...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2003
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.1590417