Optical studies of lattice and charge excitations in La1.2(Sr1.8-xCax)Mn2O7

H. L. Liu; J. L. Her; C. H. Shen; R. S. Liu

doi:10.1063/1.1556156

Optical studies of lattice and charge excitations in La_1.2(Sr_1.8-xCa_x)Mn₂O₇

H. L. Liu^*, J. L. Her, C. H. Shen, R. S. Liu

^*Corresponding author for this work

Department of Physics

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

2 Citations (Scopus)

Abstract

The optical studies of charge excitations and lattice in La_1.2(Sr_1.8-xCa_x)Mn₂O₇ were presented. It was found that the observed anomalies of the Raman phonon parameters were due to a strong spin-phonon coupling. The spin-phonon coupling was caused by the oxygen phonon modulation of the Mn-Mn spin exchange interaction.

Original language	English
Pages (from-to)	6894-6896
Number of pages	3
Journal	Journal of Applied Physics
Volume	93
Issue number	10 2
DOIs	https://doi.org/10.1063/1.1556156
Publication status	Published - 2003 May 15

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.1556156

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title = "Optical studies of lattice and charge excitations in La1.2(Sr1.8-xCax)Mn2O7",

abstract = "The optical studies of charge excitations and lattice in La1.2(Sr1.8-xCax)Mn2O7 were presented. It was found that the observed anomalies of the Raman phonon parameters were due to a strong spin-phonon coupling. The spin-phonon coupling was caused by the oxygen phonon modulation of the Mn-Mn spin exchange interaction.",

author = "Liu, {H. L.} and Her, {J. L.} and Shen, {C. H.} and Liu, {R. S.}",

year = "2003",

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T1 - Optical studies of lattice and charge excitations in La1.2(Sr1.8-xCax)Mn2O7

AU - Liu, H. L.

AU - Her, J. L.

AU - Shen, C. H.

AU - Liu, R. S.

PY - 2003/5/15

Y1 - 2003/5/15

N2 - The optical studies of charge excitations and lattice in La1.2(Sr1.8-xCax)Mn2O7 were presented. It was found that the observed anomalies of the Raman phonon parameters were due to a strong spin-phonon coupling. The spin-phonon coupling was caused by the oxygen phonon modulation of the Mn-Mn spin exchange interaction.

AB - The optical studies of charge excitations and lattice in La1.2(Sr1.8-xCax)Mn2O7 were presented. It was found that the observed anomalies of the Raman phonon parameters were due to a strong spin-phonon coupling. The spin-phonon coupling was caused by the oxygen phonon modulation of the Mn-Mn spin exchange interaction.

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M3 - Article

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ER -

Optical studies of lattice and charge excitations in La_1.2(Sr_1.8-xCa_x)Mn₂O₇

Abstract

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