Zobrazeno 1 - 10
of 20
pro vyhledávání: '"W. Schuddinck"'
Publikováno v:
Journal of alloys and compounds
Air-synthesised La 0.5 Ca 0.5 MnO 3 and Ar/H 2 annealed La 0.5 Ca 0.5 MnO 2.85 are studied by electron diffraction versus temperature and by high-resolution electron microscopy at low temperatures. The results are correlated to magnetisation measurem
Publikováno v:
Materials research bulletin
The oxide Ba 4 Ca 0.9 Mn 3.1 O 11.3 is closely related to the hexagonal perovskite family, and its fine structure is studied by high-resolution electron microscopy. Different structure models are proposed and discussed. The image contrast is best exp
Autor:
Patrick Wagner, Michael Ziese, Ivan Gordon, G. Van Tendeloo, Arabinda Das, Victor Moshchalkov, Johan Vanacken, Yvan Bruynseraede, W. Schuddinck, Gustaaf Borghs
Publikováno v:
Physical Review B. 62:11633-11638
A comparative study of the Hall effect and the longitudinal resistivity of ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Ca}}_{x}{\mathrm{MnO}}_{3}$ $(x=0.30$ and $x=0.67)$ thin films has been performed. The underdoped samples $(x=0.30)$ show a semicondu
Publikováno v:
Journal of solid state chemistry
Structural properties of Cr-doped manganites Nd0.5Ca0.5Mn1−xCrxO3 with 0.02≤x≤0.07 have been studied versus temperature by electron diffraction and high-resolution electron microscopy between 90 and 300 K. All compositions show an incommensurat
Publikováno v:
Microelectronic engineering
Time resolved photoluminescence (PL) experiments on a p-type double-barrier AlAs/GaAs resonant tunnelling structure revealed an unexpectedly long PL decay at a bias voltage below the first resonance in the current voltage characteristics. It can be e
Autor:
Vincent Caignaert, O. Richard, Bernard Raveau, Fabienne Millange, Maryvonne Hervieu, W. Schuddinck, Gustaaf Van Tendeloo
Publikováno v:
Journal of Electron Microscopy. 46:263-269
Autor:
J. Van Landuyt, Dhananjai Pandey, W. Schuddinck, O. Richard, Rajeev Ranjan, P. De Meulenaere, G. Van Tendeloo
Publikováno v:
Journal of solid state chemistry
Results of X-ray powder diffraction, neutron powder diffraction, electron microdiffraction, and convergent beam electron diffraction (CBED) studies are presented to show that the space group of (Sr 1− x Ca x )TiO 3 (SCT) in the composition range 0.
Autor:
Yvan Bruynseraede, G. Van Tendeloo, Gustaaf Borghs, Patrick Wagner, Arabinda Das, Maarten Cannaerts, Victor Moshchalkov, Ivan Gordon, W. Schuddinck
Publikováno v:
Journal of applied physics
We investigate the thickness dependent properties of manganite films characterized by colossal negative magnetoresistance. Ultrathin, wedge-type films (0–120 A) of La0.7Ba0.3MnO3 were deposited by laser ablation onto SrTiO3 and LaAlO3 substrates. T
Autor:
F. Millange, O. Richard, M. Hervieu, G. Van Tendeloo, B. Raveau, W. Schuddinck, Vincent Caignaert
Publikováno v:
Acta crystallographica: section A: foundations of crystallography
The structure of the insulating manganites Nd1−x Ca x MnO3 (0.3 ≤ x ≤ 0.5) has been studied against temperature using electron diffraction and neutron diffraction. At room temperature, the three compounds with x = 0.3, 0.4 and 0.5 exhibit the o
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