Optical properties of La0.7Pb0.3MnO3 single crystals, which exhibit paramagnetic-to-ferromagnetic transition at Tc = 332 K, are studied by optical reflection spectroscopy over board frequency and temperature range. It is shown that this transition is accompanied by an abrupt increase of the free charge carrier density due to delocalization. Experimental results are in good agreement with theoretical predictions of Millis et al. for electron-phonon coupling strength λ ≈ 1.
|頁（從 - 到）||2237-2238|
|期刊||Physica C: Superconductivity and its applications|
|出版狀態||Published - 2000 十一月|
|事件||International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA|
持續時間: 2000 二月 20 → 2000 二月 25
All Science Journal Classification (ASJC) codes