Anomalous thermal expansion and magnetostriction of single crystal Tb.27Dy.73Fe2
- 1 September 1977
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 13 (5) , 1519-1520
- https://doi.org/10.1109/tmag.1977.1059598
Abstract
Single crystal magnetostriction and thermal expansion measurements are reported on Tb .27 Dy .73 Fe 2 . A spin reorientation at T = 283K causes the sudden onset of a very large magnetostrictive distortion which yields a huge anomalous contribution to the linear thermal expansion. The temperature and magnitude of this contribution is field controlled. The expansion coefficient d(\Delta\ell/\ell)/dT can be varied from +5 to +115×10 -6 /°K. Normal magnetostrictive behavior is observed above 283K. Below this temperature a change in the easy axis from the highly magnetostrictive [111] axis to the weakly magnetostrictive [100] direction causes an anomalous field dependence. Here large external fields are required to saturate the moment along [111].Keywords
This publication has 3 references indexed in Scilit:
- Magnetomechanical coupling and ΔE effect in highly magnetostrictive rare earth - Fe2compoundsIEEE Transactions on Magnetics, 1975
- Magnetostriction of single crystal and polycrystal rare earth-Fe2 compoundsAIP Conference Proceedings, 1975
- Tunneling Spectroscopy in Degenerate-Type SiliconPhysical Review B, 1970