Films of La2 3 Ca1 3 Mn O3 were prepared via atomic layer-by-layer epitaxy both as standard solid-solution alloys and as A -site-ordered superlattices of LaMn O3 and CaMn O3 layers. The transport properties were similar, although with a shifted and broadened metal-insulator transition temperature TC in the ordered material. Transport noise near TC was also similar, in both cases revealing a narrow peak in noise magnitude versus temperature. The phase coexistence region near TC has little dependence on the intrinsic disorder of the chemical alloy.
|Original language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Jul 1 2005|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics