Comparative study of the magnetic phase diagrams of (La1− yPry) 0.7 Ca0. 3MnO3 with oxygen isotopes 16O and 18O

AM Balagurov, VY Pomjakushin, DV Sheptyakov… - Physica B: Condensed …, 2004 - Elsevier
Transitions into the magnetically ordered state in function of the average A-cation radius,〈
rA〉, have been studied by neutron powder diffraction for (La1− yPry) 0.7 Ca0. 3MnO3 …

Atomic and magnetic structure of perovskite manganites: A-cation size and oxygen isotope substitution effects and homogeneity of magnetic state

AM Balagurov, P Fischer, VY Pomjakushin… - Physica B: Condensed …, 2000 - Elsevier
A series of (La1− yPry) 0.7 Ca0. 3MnO3 samples with y= 0.5, 0.6, 0.7 and 0.75 has been
systematically studied by neutron powder diffraction. The analysis shows that their basic …

The effect of oxygen isotope substitution on magnetic properties of (La1-yPry) 0.7 Ca0. 3MnO3 manganites

NA Babushkina, LM Belova… - Journal of Physics …, 1999 - iopscience.iop.org
The effect of oxygen isotope substitution on the alternating-current magnetic susceptibility for
(La 1-y Pr y) 0.7 Ca 0.3 MnO 3 ceramics (y= 0, 0.25, 0.5, 0.75, 1) was studied in the …

Raman spectroscopic evidence of phase segregation and its dependence on isotope substitution in (La1− xNdx) 0.7 Ca0. 3MnO3

L Martın-Carrón, A de Andrés, MR Ibarra… - Journal of magnetism …, 2002 - Elsevier
Raman spectroscopic studies were carried out in the oxygen-isotope exchanged (La1−
xNdx) 0.7 Ca0. 3MnO3. We found that the phonon frequency and width are different for the …

Comparative studies of the behaviour of La0. 8Ca0. 2MnO3 with different oxygen isotope substitutions

V Chechersky, A Nath, I Isaac, JP Franck… - Journal of Physics …, 1999 - iopscience.iop.org
Emission Mössbauer effect investigations were done simultaneously with resistivity
measurements on two similar samples of La 0.8 Ca 0.2 Mn (57 Co) O 3, in one of which 18 O …

Evidence for the strong effect of quenched correlated disorder on phase separation and magnetism in (La1− yPry) 0.7 Ca0. 3MnO3

VY Pomjakushin, DV Sheptyakov… - Journal of Physics …, 2010 - iopscience.iop.org
High resolution neutron diffraction shows that the mesoscopic separation into ferromagnetic
(FM) and antiferromagnetic (AFM) phases and the FM transition temperature TC in the …

The phase diagram and magnetic properties of La1− xCaxMnO3 compounds for 0≤ x≤ 0.23

M Pissas, G Papavassiliou - Journal of Physics: Condensed …, 2004 - iopscience.iop.org
In this paper a detailed study of the La 1− x Ca x MnO 3 () phase diagram using powder x-
ray diffraction and magnetization measurements is presented. The lack of well characterized …

OXYGEN ISOTOPE EFFECT ON THE CHARGE-ORDERING TRANSITION OF La1− x CaxMnO3

I Isaac, JP Franck - Journal of Physics and Chemistry of Solids, 1998 - Elsevier
The CMR compound La1− x CaxMnO3 shows a transition to commensurate charge ordering
(Mn3+–Mn4+) for x= 50%. In the range x= 42–50%, the high temperature paramagnetic …

Coexistence of paramagnetic-charge-ordered and ferromagnetic-metallic phases in La0. 5Ca0. 5MnO3 evidenced by electron spin resonance

F Rivadulla, M Freita-Alvite… - Journal of applied …, 2002 - pubs.aip.org
Since the possibility of an intrinsically phase-separated ground state in mixed-valent
manganites was suggested by theoretical studies, 1–3 much experimental effort has gone …

Evolution of the magnetic phase diagram of CMR manganites after oxygen isotope substitution

LM Belova, NA Babushkina, OY Gorbenko… - Physica B: Condensed …, 2000 - Elsevier
Oxygen isotope effect in magnetic properties of CMR manganites of the (La1− yPry) 0.7 Ca0.
3MnO3 system was systematically studied. Substitution of 16O by 18O was found to stabilize …