Peaks have been observed at 27, 51, 61, 118, 463 and 620 cm−1, which correspond to Ag first-order Raman lines, as well as a broad band around 300 cm−1 which could be assigned to a B1g mode. A micro Raman technique was used to investigate Bi2Sr2CaCu2O8 ceramics, one of ...
The majority of the observed modes are assigned to specific vibrations in the structures. The vibrational frequencies are compared to the frequencies of the analogous modes in other Tl-based superconducting phases and YBa2Cu3O7 (Y-123). The origin of Raman peaks detected at 1360, 1560, and ...
A number of extra high-frequency phonon peaks show up in the spectra of the Re-doped samples and are attributed to the oxygen modes of a strongly bound, almost decoupled ReO6 octahedron. As regards the apex oxygen in the Hg site, a clear transfer of spectral weight from the 590 to the ...
intensity at this potential in SER spectra. (2) Stark tuning rates of the COatopband are substantially different (Fig.3b). We found a Stark tuning rate of 19 cm−1/V with SERS, and 57 cm−1/V with SEIRAS. The CO surface coverage on Au changes substantially with the potential ...
Raman peaks observed are claimed to correspond to an I stretching mode. It is suggested that the intercalated layers consist of I molecules with two possible orientations.doi:10.1016/0921-4534(91)91636-IC.H. QiuS.P. AhrenkielN. Wada
Broad and low-intensity Raman peaks are usually expected from nanocrystalline thin semiconductor films. The inherently weak Raman scattering phenomenon can be further deteriorated by unwanted background signals preventing the successful Raman analysis of an analyte. In this study, the resonant and surface...
Broad and low‐intensity Raman peaks are usually expected from nanocrystalline thin semiconductor films. The inherently weak Raman scattering phenomenon can be further deteriorated by unwanted background signals preventing the successful Raman analysis of an analyte. In this study, the resonant and ...
Low-energy electronic Raman continua (15-1000 cm[sup -1]) have been explored in pure and disordered Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8 + 未 superconducting crystals with an emphasis on both pair-breaking peaks and low-frequency slopes. In this study we are primarily interested in ...
Low-energy electronic Raman continua (15–1000 cm-1) have been explored in pure and disorderedBi2Sr2CaCu2O8+δsuperconducting crystals with an emphasis on both pair-breaking peaks and low-frequency slopes. In this study we are primarily interested in the relative intensity and line shape of ...
The power dependence of the Raman peaks was studied on Hg-1212. Raman scattering on a Hg-1212 thin film was also measured.Y.T. RenH. ChangQ. XiongY.Q. WangY.Y. SunR.L. MengY.Y. XueC.W. ChuElsevier BVPhysica C: Superconductivity and its Applications...