ISSN:
1573-7357
Keywords:
63.20.Kr
;
74. 70. Vy
;
78.30.−j
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract An extra peak was observed in the region of 290–320 cm−1 of Raman spectra of a high quality (001) (Y2Pr1)(Ba2Cu3O7) superlattice in Z(X′,Y′)Z geometryat low temperature. It was identified as an even combination of B1u vibrations in Y-subcells. We propose an asymmetric field mechanism for the Raman intensity of this extra phonon.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00752292
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