in this work, the strontium-doped lanthanum manganite- a ceramic material- used as cathode in solid oxide fuel cells. an impression of grinding time on the structural and thermal properties of sr-doped lamno3 system with la1-xsrxmno3 (x=0.2) stoichiometric ratio was investigated. the nano crystallite lsm powder with cubic structure was prepared by varying the milling time of planetary monomill ...

The Hall resistivity and magnetization have been investigated in the ferromagnetic state of the bilayered manganite La2−2xSr1+2xMn2O7 (x=0.36). The Hall resistivity shows an increase in both the ordinary and anomalous Hall coefficients at low temperatures below 50K, a region in which experimental evidence for the spin glass state has been found in a low magnetic field of 1mT. The origin of the ...

Related Articles Searching for high-k RE2O3 nanoparticles embedded in SiO2 glass matrix J. Appl. Phys. 111, 064103 (2012) Effects of alignment, pH, surfactant, and solvent on heat transfer nanofluids containing Fe2O3 and CuO nanoparticles J. Appl. Phys. 111, 064308 (2012) Size effect on the structural, magnetic, and magnetotransport properties of electron doped manganite La0.15Ca0.85MnO3 J. App...

In this study, we have performed magneto-optical Kerr effect ~MOKE! measurement on epitaxial La2/3Sr1/3MnO3 thin films containing artificial interfaces created by laser-patterning the SrTiO3 substrate. The observed increase of the resistivity and of the high-field magnetoresistance when measuring the films across the interface arrays are related to the reduction of the magnetization of the inte...

Disorder on the active d element site is usually very disruptive for conduction and long range order in perovskite transition metal oxides. However, in the background of phase competition such ‘B site’ dopants also act to promote one ordered phase at the expense of another. This occurs either through valence change of the transition metal or via creation of ‘defects’ in the parent magnetic stat...

ordering Zhanbing He, He Tian, Guochu Deng, Qiang Xu, and Gustaaf Van Tendeloo Electron Microscopy for Materials Research (EMAT), University of Antwerp, Groenenborgerlaan 171, Antwerp B-2020, Belgium Laboratory for Developments and Methods, Paul Scherrer Institute, CH-5232 Villigen, Switzerland Bragg Institute, Australian Nuclear Science and Technology Organization, New Illawarra Road, Lucas He...

The temperature T and magnetic field H dependence of the resistivity r has been measured for La0.82ySr0.2MnO3 (y50 and 0.128! films grown on ~100! SrTiO3 substrates. The low-temperature r in the ferromagnetic metallic region follows well r(H ,T)5r0(H)1A(H)vs /sinh(\vs/2kBT)1B(H)T 7/2 with r0 being the residual resistivity. We attribute the second and third term to small-polaron and spin-wave sc...

X-Ray diffraction, ac susceptibility and electrical resistivity measurements were performed in order to investigate the effect of Ag substitution for Pr in the polycrystalline Pr1−xAgxMnO3 (0.0≤x≤0.25) manganites. The XRD results show that the samples crystallize in the O’orthorhombic structure with a cooperative Jahn-Teller deformation. We give evidence that the Ag is not substituted at the Pr...

Combining pulse-probe measurements as well as local transport measurements in an electron microscope system by a simultaneous monitoring of the structural changes, we show that the nonvolatile electric pulse induced resistance change in Ca-doped praseodymium manganite is related to a polaron order-disorder transition, modified by electronic band bending in the vicinity of an interface to a meta...

The transition between different states in manganites can be driven by various external stimuli. Controlling these transitions with light opens the possibility to investigate the microscopic path through which they evolve. We performed femtosecond (fs) transmission electron microscopy on a bi-layered manganite to study its response to ultrafast photoexcitation. We show that a photoinduced tempe...