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.
R. Nirmala et al., "Electrical and Magnetotransport Properties of Canted Antiferromagnet Dy₅Si₂Ge₂," Institute of Electrical and Electronics Engineers (IEEE), Jan 2002.
The definitive version is available at http://dx.doi.org/10.1109/INTMAG.2002.1001082
Keywords and Phrases
0 T; 15 to 300 K; 6 T; 9.2 K; Dy5Si2Ge2; Ge-Si Alloys; X-Ray Diffraction; Ac Magnetic Susceptibility; Antiferromagnetic Materials; Canted Antiferromagnet; Canted Spin Arrangements; Crystal Structure; Dysprosium Alloys; Electrical Properties; Electrical Resistivity; Giant Magnetocaloric Effect; Magnetic Properties; Magnetic Susceptibility; Magnetic Transition Temperature; Magnetoresistance; Magnetotransport Properties; Neutron Diffraction; Room Temperature X-Ray Diffraction; Thermoelectric Power
Article - Conference proceedings
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