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Structure, magnetic and magnetostrictive properties in high pressure synthesized Tb0.1Nd0.9 (Fe1xMnx)1.9 alloys

Q. PAN1, Y. G. SHI1,* , Z. Y. CHEN1, C. HU1, C. X. KAN1, D. N. SHI1

Affiliation

  1. Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

Abstract

Polycrystalline magnetostrictive alloys Tb0.1Nd0.9Fe1 x Mn x 1.9 x =0, 0.05 0.1, 0.15 and 0.2) were synthes ized by high pressure annealing. Measurements of crystal structure, Curie temperature, magnetization and magnetostric tion were made on these alloys. X ray diffraction results show that the alloys exhibit single cubic Laves phase with MgCu 2 type structure. The lattice parameter increases with increasing Mn concentration while the Curie temperature decreases. The saturatio n magnetization decreases with increasing Mn, which could be understood in the frame of the rigid band model. The saturation magnetostriction decreases with increasing Mn concentration while the magnetostriction of the sample with x 0.1 peaks at low magnet ic field, which may make Tb0.1Nd0.9 (Fe0.9Mn0.1) 1.9 a promising candidate for magnetostrictive application..

Keywords

High pressure annealing Magnetostriction Cubic Laves alloys.

Citation

Q. PAN, Y. G. SHI, Z. Y. CHEN, C. HU, C. X. KAN, D. N. SHI, Structure, magnetic and magnetostrictive properties in high pressure synthesized Tb0.1Nd0.9 (Fe1xMnx)1.9 alloys, Optoelectronics and Advanced Materials - Rapid Communications, 9, 1-2, January-February 2015, pp.94-97 (2015).

Submitted at: June 10, 2014

Accepted at: Jan. 21, 2015