| Autor: |
Stern, R. A., Willoughby, S. D., Ramirez, A., MacLaren, J. M., Cui, J., Pan, Q., James, R. D. |
| Předmět: |
|
| Zdroj: |
Journal of Applied Physics; 5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p7818, 3p, 1 Chart, 3 Graphs |
| Abstrakt: |
Ferromagnetic shape memory (FSM) alloys are scientifically and technologically interesting materials that combine ferromagnetism with a reversible martensitic phase transformation. Fe[sub 70]Pd[sub 30] has recently been shown to display a FSM effect at usable temperatures and low fields. Reported here are results of experimental studies on Fe[sub 70]Pd[sub 30] and electronic structure calculations on Fe[sub 70]Pd[sub 30 - χ]Pt[sub χ]. The calculations show that additions of Pt by 6 at% to Fe[sub 70]Pd[sub 30] can triple the magnetocrystalline anisotropy. There is, however, a large discrepancy between the measured and calculated anisotropy values of Fe[sub 70]Pd[sub 30], suggesting the presence of significant disorder in the measured samples. Other calculated structural and magnetic properties are in close agreement with experimental values. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
