Zobrazeno 1 - 10
of 156
pro vyhledávání: '"F. Millange"'
Autor:
Clare P. Grey, Jean-Marie Tarascon, M. Morcrette, G. Férey, N. Guillou, Jordi Cabana, Irene Margiolaki, G. de Combarieu, F. Millange
Publikováno v:
Chemistry of Materials. 21:1602-1611
Among the metal-organic frameworks (MOFs), MIL-53(Fe) or FeIII(OH)0.8F0.2[O2C−C6H4−CO2] was the first ever reported member to reversibly insert Li+ electrochemically. A variety of electroactive sorbents has been investigated in an attempt to incr
Publikováno v:
Journal of Magnetism and Magnetic Materials. 264:221-233
The nuclear and magnetic structures of the colossal magnetoresistive compounds Nd 0.7 Ba 0.3− y Sr y MnO 3 (0⩽ y ⩽0.2) have been investigated by means of neutron powder diffraction. For all the Ba/Sr substitutions, the nuclear structure remains
Publikováno v:
Physical Review B. 62:5619-5626
In the manganite ${\mathrm{Nd}}_{0.5}{\mathrm{Ca}}_{0.5}{\mathrm{MnO}}_{3},$ charge ordering occurs at a much higher temperature than the antiferromagnetic order ${(T}_{\mathrm{CO}}=250 \mathrm{K},$ ${T}_{N}=160 \mathrm{K}).$ The magnetic behavior of
Publikováno v:
Applied Magnetic Resonance. 19:485-493
We performed multifrequency electron spin resonance (ESR) on the antiferromagnetic (TN = 160 K) and charge-ordered (T co = 250 K) insulating manganite Nd0.5Ca0.5MnO3. Temperature (4–300 K) and frequency (9.4–285 GHz) dependence of the linewidth,
Autor:
F. Millange, M. R. Ibarra, Antoine Maignan, Anthony Arulraj, Ramanathan Mahendiran, C. N. R. Rao, R. Mahesh, B. Raveau
Publikováno v:
Physical Review Letters. 82:2191-2194
We report an anomalous magnetostriction behavior of the charge ordered compound Nd0.5Sr0.5MnO3. We have found that the applied magnetic field not only gives rise to a large negative magnetoresistance but also produces a huge positive magnetovolume ef
Publikováno v:
Journal of Physics: Condensed Matter. 11:109-120
CMR manganites were studied by x-ray absorption spectroscopy at the O K-edge above and below the transition temperature . In compounds which keep the insulating behaviour in the whole temperature range, the prepeak at the O K-edge remains unique upon
Publikováno v:
Materials Research Bulletin. 34:1-9
The ordered oxygen-deficient perovskite YBaMn2O5 has been synthesized as a monophasic sample. A variable temperature neutron diffraction study of this phase has been carried out. The crystal structure of this manganite was solved in the space group P
Publikováno v:
Chemistry of Materials. 10:1974-1983
Three new perovskites in the LaBaMn2O6-x family have been synthesized by controlling the oxygen pressure, during both synthesis and postannealing. Structural determination from powder neutron diffraction (PND) data shows that one form of LaBaMn2O6 is
Autor:
Bernard Raveau, F. Millange, Maryvonne Hervieu, Antoine Maignan, Patrick Laffez, Antoine Barnabé, G. Van Tendeloo
Publikováno v:
Chem. mater.
Using a “two-steps” synthesis mode, the homogeneity ranges of the perovskites Ln1-xBaxMnO3 were extended up to x = 0.60 for the Pr-based samples and x = 0.50 for the La ones. Two new perovskites, a cubic form and a P-type tetragonal phase (with a
Publikováno v:
Materials Research Bulletin
Materials Research Bulletin, 1996, 31 (8), pp.905-911. ⟨10.1016/S0025-5408(96)00090-6⟩
Materials research bulletin
Materials Research Bulletin, Elsevier, 1996, 31 (8), pp.905-911. ⟨10.1016/S0025-5408(96)00090-6⟩
Materials Research Bulletin, 1996, 31 (8), pp.905-911. ⟨10.1016/S0025-5408(96)00090-6⟩
Materials research bulletin
Materials Research Bulletin, Elsevier, 1996, 31 (8), pp.905-911. ⟨10.1016/S0025-5408(96)00090-6⟩
The magneto resistive perovskites Nd{sub 0.5}Sr{sub 0.5}MnO{sub 3} and Pr{sub 0.5}Sr{sub 0.41}Ca{sub 0.09}MnO{sub 3} undergo a transition from anti ferromagnetic insulator to ferromagnetic metal as function of temperature. The room temperature phase