Raman scattering and X-ray diffraction study in Cu2GeSe3

G. Marcano; C. Rincón; G. Marín; G. E. Delgado; A. J. Mora; J. L. Herrera-Pérez; J. G. Mendoza-Alvarez; P. Rodríguez

doi:10.1016/j.ssc.2008.01.018

Raman scattering and X-ray diffraction study in Cu₂GeSe₃

G. Marcano, C. Rincón, G. Marín, G. E. Delgado, A. J. Mora, J. L. Herrera-Pérez, J. G. Mendoza-Alvarez, P. Rodríguez

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

A combined study of X-ray diffraction data and micro-Raman scattering of Cu₂GeSe₃ is presented. From the analysis of the X-ray data it is confirmed that this compound crystallizes in an orthorhombic cell, space group I m m 2. From Raman spectra, optical modes are identified and their possible symmetry assignments are suggested. Peaks at 212, 266 and 300 cm^-1, tentatively assigned to B₂ modes, agree well with those reported from infrared reflectivity. The most strong peak at 189 cm^-1 which is only Raman active is assigned to one of the two A₂ modes. Lines at 135, 235 and 254 cm^-1 are attributed to A₁ or B₁ modes. The highest phonon frequency band, observed at 385 cm^-1, probably comprises the remaining A₂ mode and an overtone from the strong line at 189 cm^-1.

Original language	English
Pages (from-to)	65-68
Number of pages	4
Journal	Solid State Communications
Volume	146
Issue number	1-2
DOIs	https://doi.org/10.1016/j.ssc.2008.01.018
State	Published - Apr 2008
Externally published	Yes

Keywords

A. Semiconductors
D. Optical properties
D. Raman scattering
E. Elastic light scattering

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10.1016/j.ssc.2008.01.018

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title = "Raman scattering and X-ray diffraction study in Cu2GeSe3",

abstract = "A combined study of X-ray diffraction data and micro-Raman scattering of Cu2GeSe3 is presented. From the analysis of the X-ray data it is confirmed that this compound crystallizes in an orthorhombic cell, space group I m m 2. From Raman spectra, optical modes are identified and their possible symmetry assignments are suggested. Peaks at 212, 266 and 300 cm-1, tentatively assigned to B2 modes, agree well with those reported from infrared reflectivity. The most strong peak at 189 cm-1 which is only Raman active is assigned to one of the two A2 modes. Lines at 135, 235 and 254 cm-1 are attributed to A1 or B1 modes. The highest phonon frequency band, observed at 385 cm-1, probably comprises the remaining A2 mode and an overtone from the strong line at 189 cm-1.",

keywords = "A. Semiconductors, D. Optical properties, D. Raman scattering, E. Elastic light scattering",

author = "G. Marcano and C. Rinc{\'o}n and G. Mar{\'i}n and Delgado, {G. E.} and Mora, {A. J.} and Herrera-P{\'e}rez, {J. L.} and Mendoza-Alvarez, {J. G.} and P. Rodr{\'i}guez",

year = "2008",

month = apr,

doi = "10.1016/j.ssc.2008.01.018",

language = "Ingl{\'e}s",

volume = "146",

pages = "65--68",

journal = "Solid State Communications",

issn = "0038-1098",

number = "1-2",

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T1 - Raman scattering and X-ray diffraction study in Cu2GeSe3

AU - Marcano, G.

AU - Rincón, C.

AU - Marín, G.

AU - Delgado, G. E.

AU - Mora, A. J.

AU - Herrera-Pérez, J. L.

AU - Mendoza-Alvarez, J. G.

AU - Rodríguez, P.

PY - 2008/4

Y1 - 2008/4

N2 - A combined study of X-ray diffraction data and micro-Raman scattering of Cu2GeSe3 is presented. From the analysis of the X-ray data it is confirmed that this compound crystallizes in an orthorhombic cell, space group I m m 2. From Raman spectra, optical modes are identified and their possible symmetry assignments are suggested. Peaks at 212, 266 and 300 cm-1, tentatively assigned to B2 modes, agree well with those reported from infrared reflectivity. The most strong peak at 189 cm-1 which is only Raman active is assigned to one of the two A2 modes. Lines at 135, 235 and 254 cm-1 are attributed to A1 or B1 modes. The highest phonon frequency band, observed at 385 cm-1, probably comprises the remaining A2 mode and an overtone from the strong line at 189 cm-1.

AB - A combined study of X-ray diffraction data and micro-Raman scattering of Cu2GeSe3 is presented. From the analysis of the X-ray data it is confirmed that this compound crystallizes in an orthorhombic cell, space group I m m 2. From Raman spectra, optical modes are identified and their possible symmetry assignments are suggested. Peaks at 212, 266 and 300 cm-1, tentatively assigned to B2 modes, agree well with those reported from infrared reflectivity. The most strong peak at 189 cm-1 which is only Raman active is assigned to one of the two A2 modes. Lines at 135, 235 and 254 cm-1 are attributed to A1 or B1 modes. The highest phonon frequency band, observed at 385 cm-1, probably comprises the remaining A2 mode and an overtone from the strong line at 189 cm-1.

KW - A. Semiconductors

KW - D. Optical properties

KW - D. Raman scattering

KW - E. Elastic light scattering

UR - http://www.scopus.com/inward/record.url?scp=40249107477&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2008.01.018

DO - 10.1016/j.ssc.2008.01.018

M3 - Artículo

SN - 0038-1098

VL - 146

SP - 65

EP - 68

JO - Solid State Communications

JF - Solid State Communications

IS - 1-2

ER -

Raman scattering and X-ray diffraction study in Cu₂GeSe₃

Abstract

Keywords

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