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Get Free AccessRaman scattering experiments on metallic ${\mathrm{La}}_{0.7}$${\mathrm{Sr}}_{0.3}$Mn${\mathrm{O}}_{3}$ have been carried out using different excitation wavelengths as a function of temperature from 15 K to 300 K. Our data suggest a Raman mode attributed to electronic excitations centered at 2100 ${\mathrm{cm}}^{\ensuremath{-}1}$ whose intensity decreases with increasing temperature. If the Raman mode is attributed to single-particle excitation associated with the fluctuations of the mass tensor, the decreased intensity would then imply a reduction in the density of states at the Fermi energy with increasing temperature.
Rajeev Gupta, A. K. Sood, R. Mahesh, Cnr Rao (1996). Electronic Raman scattering from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">La</mml:mi></mml:mrow><mml:mrow><mml:mn>0.7</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Sr</mml:mi></mml:mrow><mml:mrow><mml:mn>0.3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>Mn<mml:…. Physical review. B, Condensed matter, 54(21), pp. 14899-14902, DOI: 10.1103/physrevb.54.14899.
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Type
Article
Year
1996
Authors
4
Datasets
0
Total Files
0
Language
English
Journal
Physical review. B, Condensed matter
DOI
10.1103/physrevb.54.14899
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