Physical Sciences and Mathematics Commons^™

Magnetic Properties Of Ho2fe17-Xmnx - Influence Of Mn Substitution, Jianli Wang, Stewart J. Campbell, A J Studer, S J. Kennedy, Rong Zeng

Jianli Wang

The structural and magnetic properties of Ho₂Fe_17−xMn_x (x=0-5) have been investigated by x-ray diffraction, Mössbauer spectroscopy and DC magnetization measurements (0-5 T) over the temperature range 4.5-350 K. Similar to other ferrimagnetic R₂Fe_17-xMn_x systems, the unit cell volume generally increases with Mn content other than for low Mn values where a slight maximum is detected around x ∼ 0.5. The nature of the magnetic phase transitions around T_C is shown by Arrot plot analysis to be second order for all samples. The Curie temperature remains essentially unchanged …