Abstract

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.

Department(s)

Physics

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

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2002 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Included in

Chemistry Commons

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