Anomalous dispersion of longitudinal optical phonons in Nd1.86Ce0.14CuO4+δ determined by inelastic X-ray scattering

M. D'Astuto; P. K. Mang; P. Giura; A. Shukla; P. Ghigna; A. Mirone; M. Braden; M. Greven; M. Krisch; F. Sette

Anomalous dispersion of longitudinal optical phonons in Nd_1.86Ce_0.14CuO_4+δ determined by inelastic X-ray scattering

M. D'Astuto, P. K. Mang, P. Giura, A. Shukla, P. Ghigna, A. Mirone, M. Braden, M. Greven, M. Krisch, F. Sette

Physics and Astronomy (Twin Cities)

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

78 Scopus citations

Abstract

Phonon dispersion in n-type cuprates Nd_1.86Ce_0.14CuO_4+δ (NCCO) was analysed using inelastic x-ray scattering technique. This technique helps to overcome the need for large single crystals of high chemical and structural quality. Results showed that there is anomalous softening in the electron-doped cuprates as was found earlier in the hole-doped compounds.

Original language	English (US)
Article number	167002
Pages (from-to)	1670021-1670024
Number of pages	4
Journal	Physical review letters
Volume	88
Issue number	16
State	Published - Apr 22 2002

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Anomalous dispersion of longitudinal optical phonons in Nd_1.86Ce_0.14CuO_4+δ determined by inelastic X-ray scattering. / D'Astuto, M.; Mang, P. K.; Giura, P.; Shukla, A.; Ghigna, P.; Mirone, A.; Braden, M.; Greven, M.; Krisch, M.; Sette, F.

In: Physical review letters, Vol. 88, No. 16, 167002, 22.04.2002, p. 1670021-1670024.

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

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abstract = "Phonon dispersion in n-type cuprates Nd1.86Ce0.14CuO4+δ (NCCO) was analysed using inelastic x-ray scattering technique. This technique helps to overcome the need for large single crystals of high chemical and structural quality. Results showed that there is anomalous softening in the electron-doped cuprates as was found earlier in the hole-doped compounds.",

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AU - Giura, P.

AU - Shukla, A.

AU - Ghigna, P.

AU - Mirone, A.

AU - Braden, M.

AU - Greven, M.

AU - Krisch, M.

AU - Sette, F.

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AB - Phonon dispersion in n-type cuprates Nd1.86Ce0.14CuO4+δ (NCCO) was analysed using inelastic x-ray scattering technique. This technique helps to overcome the need for large single crystals of high chemical and structural quality. Results showed that there is anomalous softening in the electron-doped cuprates as was found earlier in the hole-doped compounds.

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