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

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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.

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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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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