Raman scattering of CuGeO3 and Y2BaNiO5

Norio Ogita; Masayuki Udagawa; Tetsuya Yokoo; Osanm Fujita; Jun Akimitsu

doi:10.1007/BF02570979

Raman scattering of CuGeO₃ and Y₂BaNiO₅

Norio Ogita, Masayuki Udagawa, Tetsuya Yokoo, Osanm Fujita, Jun Akimitsu

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Abstract

Raman scattering and infrared absorption spectra of CuGeO₃ and Y₂BaNiO₅ have been measured. CuGeO₃is a typical inorganic spin-Peierls system with S=1/2 and Y₂BaNiO₅ is a recently discovered Haldane system with S=1. Two magnon excitation along the c*-axis is found for CuGeO₃. Additional two-magnon excitations due to one dimensional fluctuation are observed for both system. For CuGeO₃ the mode at about 30cm ^-1 is the soft mode due to the lattice distortion, not dug to the spin gap. The normal mode calculations for CuGeO₃ show that the crystal structure is stabilized by the Ge-O frame.

Original language	English
Pages (from-to)	1975-1976
Number of pages	2
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 4
DOIs	https://doi.org/10.1007/BF02570979
Publication status	Published - 1996
Externally published	Yes

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title = "Raman scattering of CuGeO3 and Y2BaNiO5",

abstract = "Raman scattering and infrared absorption spectra of CuGeO3 and Y2BaNiO5 have been measured. CuGeO3is a typical inorganic spin-Peierls system with S=1/2 and Y2BaNiO5 is a recently discovered Haldane system with S=1. Two magnon excitation along the c*-axis is found for CuGeO3. Additional two-magnon excitations due to one dimensional fluctuation are observed for both system. For CuGeO3 the mode at about 30cm -1 is the soft mode due to the lattice distortion, not dug to the spin gap. The normal mode calculations for CuGeO3 show that the crystal structure is stabilized by the Ge-O frame.",

author = "Norio Ogita and Masayuki Udagawa and Tetsuya Yokoo and Osanm Fujita and Jun Akimitsu",

year = "1996",

doi = "10.1007/BF02570979",

language = "English",

volume = "46",

pages = "1975--1976",

journal = "Czechoslovak Journal of Physics",

issn = "0011-4626",

publisher = "Springer Netherlands",

number = "SUPPL. 4",

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TY - JOUR

T1 - Raman scattering of CuGeO3 and Y2BaNiO5

AU - Ogita, Norio

AU - Udagawa, Masayuki

AU - Yokoo, Tetsuya

AU - Fujita, Osanm

AU - Akimitsu, Jun

PY - 1996

Y1 - 1996

N2 - Raman scattering and infrared absorption spectra of CuGeO3 and Y2BaNiO5 have been measured. CuGeO3is a typical inorganic spin-Peierls system with S=1/2 and Y2BaNiO5 is a recently discovered Haldane system with S=1. Two magnon excitation along the c*-axis is found for CuGeO3. Additional two-magnon excitations due to one dimensional fluctuation are observed for both system. For CuGeO3 the mode at about 30cm -1 is the soft mode due to the lattice distortion, not dug to the spin gap. The normal mode calculations for CuGeO3 show that the crystal structure is stabilized by the Ge-O frame.

AB - Raman scattering and infrared absorption spectra of CuGeO3 and Y2BaNiO5 have been measured. CuGeO3is a typical inorganic spin-Peierls system with S=1/2 and Y2BaNiO5 is a recently discovered Haldane system with S=1. Two magnon excitation along the c*-axis is found for CuGeO3. Additional two-magnon excitations due to one dimensional fluctuation are observed for both system. For CuGeO3 the mode at about 30cm -1 is the soft mode due to the lattice distortion, not dug to the spin gap. The normal mode calculations for CuGeO3 show that the crystal structure is stabilized by the Ge-O frame.

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JO - Czechoslovak Journal of Physics

JF - Czechoslovak Journal of Physics

IS - SUPPL. 4

ER -

Raman scattering of CuGeO₃ and Y₂BaNiO₅

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