| Autor: |
Kudryavtsev, Y. V., Oksenenko, V. A., Lee, N. N., Lee, Y. P., Rhee, J. Y., Dubowik, J. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 6/1/2005, Vol. 97 Issue 11, p113903, 8p, 1 Chart, 10 Graphs |
| Abstrakt: |
The structural dependence of the magnetic, transport, optical, and magneto-optical (MO) properties of Cu2MnAl Heusler alloy (HA) thin-film samples was investigated. Disordered thin films of Cu2MnAl HA fabricated by vapor-quenching deposition onto substrates cooled by liquid nitrogen behave as highly resistive Pauli paramagnets down to 5 K, while an annealing of the disordered films at 580 K for 1 h restores the L21-type ordered structure, as well as the ferromagnetic order and other physical properties typical for the ordered Cu2MnAl HA film. The film deposition onto substrates held at T>=690 K leads to the formation of a multiphase crystalline structure. A significant influence of the structural disorder on the optical and MO properties of Cu2MnAl was experimentally observed and discussed in terms of the electronic structure of the alloy. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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