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

Hsiang Lin Liu, J. L. Her, C. H. Shen, R. S. Liu

Research output: Contribution to journalArticle

2 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)6894-6896
Number of pages3
JournalJournal of Applied Physics
Volume93
Issue number10 2
DOIs
Publication statusPublished - 2003 May 15

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spin exchange
excitation
anomalies
modulation
oxygen
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Optical studies of lattice and charge excitations in La1.2(Sr1.8-xCax)Mn2O7. / Liu, Hsiang Lin; Her, J. L.; Shen, C. H.; Liu, R. S.

In: Journal of Applied Physics, Vol. 93, No. 10 2, 15.05.2003, p. 6894-6896.

Research output: Contribution to journalArticle

Liu, Hsiang Lin ; Her, J. L. ; Shen, C. H. ; Liu, R. S. / Optical studies of lattice and charge excitations in La1.2(Sr1.8-xCax)Mn2O7. In: Journal of Applied Physics. 2003 ; Vol. 93, No. 10 2. pp. 6894-6896.
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