Magnetisme et conductivite des siliciures Y2Mn3Si5 et Lu2Mn3Si5 |
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| Authors: | M Méot-Meyer G Venturini B Malaman E Mc Rae B Roques |
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| Affiliation: | Laboratoire de Chimie de Solide Minéral, associé au C.N.R.S. n° 158, B.P. n° 239, 54506 Vandoevre les Nancy Cedex, France |
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| Abstract: | Y2Mn3Si5 and Lu2Mn3Si5 order ferrimagnetically at TN = 96 and 56 K respectively; their resistivity strongly decreases at the transition from paramagnetic to ferrimagnetic phase. A model is proposed for the magnetic coupling.Two new silicides with the Sc2Fe3Si5-type structure are characterized by X-ray powder diffraction : Gd2Mn3Si5 and Yb2Mn3Si5. |
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