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.
|頁（從 - 到）||6894-6896|
|期刊||Journal of Applied Physics|
|出版狀態||已發佈 - 2003 5月 15|
ASJC Scopus subject areas
- 物理與天文學 (全部)