Electrical and Magnetotransport Properties of Canted Antiferromagnet Dy₅Si₂Ge₂

R. Nirmala
V. Sankaranarayanan
K. Sethupathi
Zili Chu
William B. Yelon, Missouri University of Science and Technology
V. Prasad
A. V. Morozkin
Satish K. Malik
S. V. Subramanyam

This document has been relocated to http://scholarsmine.mst.edu/phys_facwork/279

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Summary form only given. Since the giant magnetocaloric effect is encountered in a ferromagnetic Gd5Si2Ge2 alloy near room temperature it is considered as a suitable material for magnetic refrigerator applications. Also a commensurate structural transition occurs at the magnetic transition temperature and there is a good correlation between the crystal structure and magnetic properties. Such observations have triggered numerous experimental studies on similar rare earth alloys and compounds. We have synthesized its Dy- analogue, namely, Dy5Si2Ge2 and have characterized it by means of room temperature X-ray diffraction, ac magnetic susceptibility (15 K - 300 K), electrical resistivity (at zero field and at 6 T), thermoelectric power (15 K - 300 K) and neutron diffraction (at 300 K and 9.2 K) experiments.