Raman spectroscopy of (formula presented) Mode assignment and relationship between Raman line intensities and structural distortions

Physical Review B - Condensed Matter and Materials Physics

Volumn 65, Issue 18, 2002, Pages 1-9

  Abrashev, M V ^a   Backstrom J ^b   Borjesson L ^b   Popov, V N ^a   Chakalov, R A ^c   Kolev, N ^d   Meng, R L ^d   Iliev, M N ^d  

^a UNIVERSITY OF SOFIA   (Bulgaria)

^b CHALMERS UNIVERSITY OF TECHNOLOGY   (Sweden)

^c UNIVERSITY OF BIRMINGHAM   (United Kingdom)

^d UNIVERSITY OF HOUSTON   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84874519115     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.65.184301     Document Type: Article

References (28)

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10. Note that the ratio of the calculated intensities is the same as for the lines in the Raman spectra of the proposed simplified structure of the charge- and orbital-ordered (formula presented) finely twinned single crystal Ref. 5. In fact, Table II can be used for determination of the symmetry of the Raman lines in any case of a finely twinned quasicubic single crystal consisting of orthorhombic domains having a structure with (formula presented), where a, b, and c are the nonzero components of the corresponding Raman tensor.
11. There is an additional special case, where the (formula presented) Raman tensor components are (formula presented). Such an (formula presented) modes and it will be indistinguishable from them. Based on the LDC’s, however, none of the (formula presented) modes can be connected to a line with such a type of Raman tensor.
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