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.
|Number of pages||3|
|Journal||Journal of Applied Physics|
|Issue number||10 2|
|Publication status||Published - 2003 May 15|
ASJC Scopus subject areas
- Physics and Astronomy(all)