Abstract
The structural, electrical and magnetic properties of Ho 0.85Tb 0.15Fe 2B x ( x=0,0.05,0.1,0.15) have been carried out through X-ray diffraction, electrical resistivity and magnetization measurements. All the alloys are found to crystallize in C15-type cubic Laves phase structure. It is observed that the lattice parameter is found to increase with increasing boron concentration, which may be due to the occupation of boron at interstitial sites. The magnetization and Curie temperature are found to be constant with the increase in x. The temperature variation of electrical resistivity shows a metallic behavior with an increase in resistivity with increasing boron concentration. The resitivity behavior is explained on the basis of electron–magnon scattering at low temperatures and electron–phonon scattering at high temperatures.
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