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Vertical Floating Zone Crystal Growth of R2PdSi3 Intermetallic Compounds (R=Pr and Nd)
Abstract:
The class of R2PdSi3 single crystals (R= rare earth element) with hexagonal AlB2-type crystallographic structure reveals the systematic dependence of anisotropic magnetic properties governed by the interplay of crystal-electric field effects and magnetic two-ion interactions. Here we compare the floating zone (FZ) crystal growth with radiation heating of compounds Pr2PdSi3 and Nd2PdSi3. The congruent melting behavior enabled moderate growth velocities of 3 to 5 mmh-1. The preferred growth directions are close to the basal plane of the hexagonal unit cell. The composition of the crystals, is slightly Pd-depleted with respect to the nominal composition 16.7 at.% Pd. The Pr2PdSi3 compound exhibit antiferromagnetic order below the Néel temperatures TN: 2.17 K and Nd2PdSi3 compound order ferromagnetically below the Curie temperature TC = 15.1 K.
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720-724
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Online since:
September 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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