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

^*此作品的通信作者

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

2 引文斯高帕斯（Scopus）

摘要

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.

原文	英語
頁（從 - 到）	6894-6896
頁數	3
期刊	Journal of Applied Physics
卷	93
發行號	10 2
DOIs	https://doi.org/10.1063/1.1556156
出版狀態	已發佈 - 2003 5月 15

ASJC Scopus subject areas

一般物理與天文學

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10.1063/1.1556156

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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.}",

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

摘要

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