Title :
Thermal expansion and magneto striction in Pr5Ni2Si3 compounds
Author :
Song, S.H. ; Snyder, J.E. ; Wu, D. ; Lograsso, T.A. ; Dennis, K.W. ; McCallum, R.W. ; Janssen, Y. ; Jiles, D.C.
Author_Institution :
Ames Lab., Iowa State Univ., Ames, IA, USA
Abstract :
The thermal expansion and magnetostriction of polycrystalline and single-crystal Pr5Ni2Si3 were investigated over the temperature range 5-300 K. The results show two magnetic phase transitions, one corresponding to the Curie temperature and the other at a lower temperature exhibiting characteristics of a spin reorientation transition. In the temperature range below the Curie temperature, the thermal expansion in single-crystal samples exhibited a temperature dependent anisotropy. Specifically negative and positive magnetic contributions to the thermal expansion were observed along the directions parallel and perpendicular to the c axis respectively.
Keywords :
Curie temperature; magnetic anisotropy; magnetic transitions; magnetostriction; praseodymium compounds; spin dynamics; thermal expansion; 5 to 300 K; Curie temperature; Pr5Ni2Si3; magnetic phase transitions; magnetostriction; spin reorientation; temperature dependent anisotropy; thermal expansion; Anisotropic magnetoresistance; Magnetic anisotropy; Magnetic field induced strain; Magnetic field measurement; Magnetostriction; Perpendicular magnetic anisotropy; Strain measurement; Temperature dependence; Temperature distribution; Thermal expansion; Magnetostriction; rare earth; single crystal; spin reorientation; thermal expansion;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854765
