Results 101 to 110 of about 6,511 (218)

Enhancement of temperature coefficient of resistance (TCR) and magnetoresistance (MR) of La0.67–xRExCa0.33MnO3 (x = 0, 0.1; RE = Gd, Nd, Sm) system via rare-earth substitution

Materials Research Express, 2020
We investigated the influence of 10% substitution of rare-earth (RE) elements on the crystallographic, transport, and magnetic properties of La _0.67– _x RE _x Ca _0.33 MnO _3 (RE = Nd, Sm, and Gd, x  = 0.0, 0.1) manganite perovskite compounds.
Anand Pal, B S Nagaraja, K J Rachana, K V Supriya, Dhananjaya Kekuda, Ashok Rao, Chia-Ruei Li, Yung-Kang Kuo   +7 more
doaj   +1 more source

Magnon Excitations in Manganites [PDF]

, 2004
A review of experimental studies of magnon excitations in manganites is presented. Two kinds of techniques: the inelastic neutron scattering (in bulk materials) and the microwave resonance (in thin films) are considered.
Baran, M., Aleshkevych, P., Szymczak, H.
core   +1 more source

Giant dielectric permittivity and magneto-capacitance effects in low doped manganites

New Journal of Physics, 2014
The effect of giant dielectric permittivity due to phase separation accompanied by charged inhomogeneities in low-doped manganites is discussed. The effect appears in the vicinity of the second-order magnetic phase transition and is caused by long-range ...
R F Mamin, V V Kabanov
doaj   +1 more source

Dielectric behavior of La_1-xCa_xMnO₃ (0.4 ≤ x ≤ 0.5)

Boletín de la Sociedad Española de Cerámica y Vidrio, 2006
In this work the dielectric behavior of semiconducting La-manganites in an intermediate Ca-doping regime is studied. Ceramic samples were prepared by conventional solid-state reaction, using elemental oxides as starting reactants.
Fondado, A., Mira, J., Botta, P. M., Botta, P. M., Rivas, J., Mira, J., Fondado, A., Rivas, J.   +7 more
doaj  

Dynamics of electronic phase separation at the laser-induced insulator-metal transition in (La_{0.6}Pr_{0.4})_{0.7}Ca_{0.3}MnO_{3}

Physical Review Research
Ultrafast optical excitations allow creating new metastable and hidden states in quantum materials. However, the fundamental material properties required to support new emergent order are largely unknown.
Tim Titze, Maximilian Staabs, Pia Henning, Karen Stroh, Stefan Mathias, Vasily Moshnyaga, Daniel Steil   +6 more
doaj   +1 more source

Single Crystals of Bilayer Manganites

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Prabhakaran, D, Boothroyd, A
openaire   +1 more source

Hierarchical shape-controlled mixed-valence calcium manganites for catalytic ozonation of aqueous phenolic compounds

, 2016
Catalytic ozonation has attracted intensive attention due to its efficient degradation of various organic pollutants in water. The key to a practical application is the discovery of highly effective catalysts.
Wang, Yuxian, Cao, H., Wang, Shaobin, Wang, S., Xie, Y., Sun, H., Wang, Y., Xiao, J., Xiao, Jiadong, Cao, Hongbin, Xie, Yongbing, Sun, Hongqi   +11 more
core   +1 more source

Estudio Mössbauer para el sistema La_0.7M_0.3Mn_1-xFe_xO_3-y (M = Pb, Sr, 0.01 ≤ X ≤ 0.3)

Boletín de la Sociedad Española de Cerámica y Vidrio, 2000
On cooling the compounds of the form La1-xMxMnO3-y (where M is divalent cation) show a large decrease in resistivity associated with a paramagnetic to ferromagnetic transition.
Rojo, T., Plazaola, F., Hernández, T., Barandiarán, J. M.   +3 more
doaj  

Isotope effects in colossal magnetoresistance (CMR) manganites

, 2018
Oxygen isotope effects observed in the metallic and the charge ordered phase of colossal magnetoresistance manganites are investigated by employing the combined theoretical model of the double exchange and interacting lattice polaron mechanism.
Yu, UJ, Min, BI, Park, JH, Skrypnyk, YV
core   +1 more source

Effects of interaction and disorder on polarons in colossal resistance manganite Pr0.68Ca0.32MnO3 thin films

Materials Research Express, 2014
The colossal magnetoresistance effect (CMR), the drop of the electric resistance by orders of magnitude in a strong magnetic field, is a fascinating property of strongly correlated electrons in doped manganites.
J Hoffmann, P Moschkau, S Mildner, J Norpoth, Ch Jooss, L Wu, Y Zhu   +6 more
doaj   +1 more source