TY - JOUR
T1 - Role of disorder in phase coexistence in manganites
T2 - Noise in layered films
AU - Palanisami, Akilan
AU - Warusawithana, Maitri
AU - Eckstein, James N
AU - Weissman, M. B.
AU - Mathur, N. D.
PY - 2005/7/1
Y1 - 2005/7/1
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.72.024454
DO - 10.1103/PhysRevB.72.024454
M3 - Article
AN - SCOPUS:33644942514
VL - 72
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 2
M1 - 024454
ER -