The influence of high pressure on the structural and magnetic properties of Y2Fe17?xMx (M=Si, Al; x=1.7) compounds |
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| Authors: | V I Voronin A G Kuchin V P Glazkov D P Kozlenko and B N Savenko |
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| Institution: | (1) Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620219, Russia;(2) Russian Research Centre Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182, Russia;(3) Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia |
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| Abstract: | The influence of high pressure on the crystal structure of the hexagonal intermetallic compounds Y2Fe17, Y2Fe15.3Al1.7, and Y2Fe15.3Si1.7 is investigated by neutron diffraction for the first time. It is shown that, under high pressure, the crystal lattice undergoes
an isotropic contraction. A correlation of the changes in the Curie temperature with the distance between iron atoms in the
dumbbell positions under pressure is revealed. The effect of pressure on the Y2Fe17 compound is examined at low temperatures. It is found that the magnetostriction in this compound is suppressed under high
pressure.
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Translated from Fizika Tverdogo Tela, Vol. 46, No. 2, 2004, pp. 299–304.
Original Russian Text Copyright ? 2004 by Voronin, Kuchin, Glazkov, Kozlenko, Savenko. |
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