Emission Mössbauer effect measurements for the internal hyperfine magnetic field (s),
superparamagnetic behavior, and Debye-Waller factors at the Mn site for the 16 O-and 18 O …

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 …

We have resolved a controversial issue concerning the oxygen-isotope shift of the
ferromagnetic transition temperature TC in the manganite La 0.8 Ca 0.2 MnO 3+ y. We show …

We report magnetic susceptibility χ (T) measurements on oxygen-isotope exchanged La 1−
x Ca x Mn O 3+ y up to 700 K. The 1∕ χ (T) data show that the ferromagnetic exchange …

Thermal-expansion and magnetic susceptibility measurements were performed on oxygen-
isotope substituted manganites (La 1− x Ca x) 1− y Mn 1− y O 3 with a Mn 4+ concentration …

The local structure of the 2.5% 57 Fe-doped La 0.9 MnO x (x= 2.89, 2.92 and 2.93)
manganites has been investigated by means of Mössbauer spectroscopy. In the …

Raman-scattering experiments have been carried out on polycrystalline samples of La 0.65
Ca 0.35 Mn 16 O 3 and isotope-exchanged La 0.65 Ca 0.35 Mn 18 O 3 as a function of …

Mössbauer spectroscopy has been applied for studying the local environment of Fe 57
probe atoms within iron-doped Ca Mn 7 O 12 manganite with a perovskite-like structure. The …

Using Co 57 emission Mössbauer technique, we present clear evidence that in Ca-doped
manganite, the magnetic and paramagnetic phases coexist below TC, with the abundance …

The effect of cobalt doping on the structural and magnetic properties of polycrystalline Sm
0.5 Ca 0.5 Mn 1− x Co x O 3 (0⩽ x⩽ 0.20) has been studied. Powder X-ray diffraction (XRD) …