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The structural transitions that appear in the manganites Ca1-xThxMnO3versus temperature are studied in connection with their magnetic and transport properties, and compared to those of the Ca1-xLnxMnO3 manganites. An orthorhombic to monoclinic transition is observed for low x values ( $$x \approx 0.08$$ ;this structural distortion, also observed for Ln-doped oxides, is related to the magnetoresistance...
Keywords:
PACS. 61.14.-X ELECTRON DIFFRACTION AND SCATTERING - 75.30.-M INTRINSIC PROPERTIES OF MAGNETICALLY ORDERED MATERIALS - 72.20.MY GALVANOMAGNETIC AND OTHER MAGNETOTRANSPORT EFFECTS
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