Absence of isotope effect in Mn4+-rich CMR manganites Sm1-xCaxMnO3 (x similar to 0.85-0.88)

Authors
Belova, LM Babushkina, NA Taldenkov, AN Maignan, A Martin, C Raveau, B
Citation
Lm. Belova et al., Absence of isotope effect in Mn4+-rich CMR manganites Sm1-xCaxMnO3 (x similar to 0.85-0.88), J PHYS-COND, 13(5), 2001, pp. 1103-1109
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN journal
09538984 → ACNP
Volume
13
Issue
5
Year of publication
2001
Pages
1103 - 1109
Database
ISI
SICI code
0953-8984(20010205)13:5<1103:AOIEIM>2.0.ZU;2-5
Abstract
The oxygen isotope effect has been studied in the Sm1-xCaxMnO3 system in th e vicinity of a phase boundary at x = 0.85 and 0.88. Resistivity rho (T) an d ac magnetic susceptibility chi'(T) measurements did not demonstrate any s ignificant change in transport and magnetic properties of the system as a r esult of the O-16-O-18 isotope substitution, as opposed to the hole-doped m anganites of the Ln(1-x)A(x)MnO(3) system, where an enormous oxygen isotope effect has been reported.