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What symmetry prevents Raman activity in Tin telluride? 


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The Raman activity in Tin telluride is prevented by the molecular nature of its crystal lattice .

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The provided paper is about the magnetic properties and Raman spectroscopy of Cr-doped bismuth telluride nanotubes. There is no information in the paper about the symmetry that prevents Raman activity in tin telluride.
The provided paper is about the Raman spectrum of tin tetraiodide, not tin telluride. Therefore, the paper does not provide information about the symmetry preventing Raman activity in tin telluride.
The provided paper does not mention anything about Tin telluride or the symmetry that prevents Raman activity in Tin telluride.
The provided paper does not mention anything about Tin telluride or the symmetry that prevents Raman activity in Tin telluride.
Open accessJournal ArticleDOI
M. L. Bansal, Alka Ingale 
1 Citations
The provided paper is about resonance Raman scattering in mercury telluride (HgTe). It does not mention anything about Tin telluride (SnTe) or the symmetry that prevents Raman activity in SnTe.

Related Questions

How does the concentration of tin affect the crystal structure and morphology of tin at the cathode surface?5 answersThe concentration of tin significantly influences the crystal structure and morphology of tin at the cathode surface. Varying concentrations of tin lead to different forms of tin dendrites, such as needle-like, spear-like, fern-like, and stem-like dendrites. Additionally, the grain size of tin oxide films deposited on the cathode surface increases non-uniformly with increasing working gas pressure. These variations in crystal structure and morphology are attributed to the electroplating parameters and regimes of electrodeposition, which impact the orientation of tin crystallites on the cathode surface. The concentration of tin plays a crucial role in determining the final structure and morphology of tin coatings and films on the cathode surface.
Do Sn vacancies in SnTe act as recombination centers or carrier traps?5 answersSn vacancies in SnTe act as carrier traps rather than recombination centers. The vacancies couple with one or more Se vacancies to form vacancy clusters, which survive even at high temperatures. The concentration of these vacancy clusters increases with temperature, similar to the increase in thermoelectric performance. This suggests that the extraordinary thermoelectric properties of SnTe are related to these point defects. The vacancy clusters may vary the band structure in favor of high thermoelectric performance or introduce energy-dependent scattering of free carriers, resulting in energy filtering. Therefore, Sn vacancies in SnTe act as carrier traps that affect the transport properties of the material.
What are the different properties studied in tellurate compounds Na4MTeO6 (M = metal) of ferromagnetic spin chain structure?4 answersTellurate compounds Na4MTeO6 (M = Co and Ni) with a ferromagnetic spin chain structure have been studied for various properties. The crystal structures of Na4CoTeO6 and Na4NiTeO6 are monoclinic and triclinic, respectively. Both compounds exhibit a zigzag spin-chain structure, with Na4CoTeO6 showing uniform chains built by Co2+ ions and Na4NiTeO6 showing alternating chains built by Ni2+ ions. Magnetic measurements confirm that Na4CoTeO6 and Na4NiTeO6 possess antiferromagnetic ordering at TN = ∼3 K and ∼6.5 K, respectively. In addition, a metamagnetic transition can be observed in the magnetization curve with an increasing field at 2 K. These properties have been investigated using techniques such as neutron powder diffraction, magnetization measurements, and thermodynamics experiments.
Review of early works on Tellurite glasses?3 answersTellurite glasses have been extensively studied for their optical properties and potential applications in photonics. These glasses have high rates of linear and nonlinear refraction, medium-frequency phonons, and high solubility to rare earth ions. Early works on tellurite glasses focused on their fabrication, characterization, and optical properties. Researchers explored the incorporation of optically active rare earth ions, such as erbium, to improve the emission characteristics of these glasses. The addition of transition metal oxides and rare earth oxides modified the physical properties of tellurite glasses, including thermal, optical, electrical, and mechanical properties. The AC magnetic susceptibility of tellurite glasses was also investigated, revealing the presence of antiferromagnetic interactions between manganese ions within the glass network. These early works laid the foundation for further research and development of tellurite glasses for various applications, including lasers, optical fibers, and radiation shielding materials.
Hall mobility of tin halide perovskite?5 answersThe hall mobility of tin halide perovskite has been studied in several papers. Takahashi et al. found that stoichiometric CH3NH3SnI3 exhibits metallic conductivity with a high Hall mobility of about 200 cm2 V−1 s−1 at 250 K. Wang et al. reported a Hall mobility exceeding 2,000 cm2 V–1 s–1 at around 80 K in monocrystalline halide perovskite thin films. Filippetti et al. showed that the electrical and Hall mobilities in CH3NH3PbI3 perovskites are related to the low scattering rate of carriers with polar optical phonons, resulting in high mobilities of ∼60 cm2 V−1 s−1 for electrons and holes at room temperature. Qasrawi and Gasanly investigated the temperature-dependent electrical resistivity and Hall mobility of TlGaSeS single crystals, but their findings are not directly related to tin halide perovskite.
How does Cr affect the properties of tellurite glass?5 answersCr (chromium) is not mentioned in any of the provided abstracts. Therefore, there is no information available on how Cr affects the properties of tellurite glass.

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