| Autor: |
Susilo, R., Cadogan, J., Ryan, D., Lee-Hone, N., Cobas, R., Muñoz-Pérez, S. |
| Předmět: |
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| Zdroj: |
Hyperfine Interactions; Apr2014, Vol. 226 Issue 1-3, p257-266, 10p |
| Abstrakt: |
We have determined the magnetic structure of the intermetallic compound GdGa by Gd Mössbauer spectroscopy and neutron powder diffraction. This compound crystallizes in the orthorhombic ( Cmcm) CrB-type structure. It orders ferromagnetically at T = 190(2) K and then undergoes a spin reorientation at T = 68(2) K. Between T and T, the magnetic structure is characterized by ferromagnetic order of the Gd moments along the b-axis. On cooling below T, the Gd 4 c magnetic moments split into two groups (2:2). At 3.6 K, the Gd moment is 6.7(4) μ, and the Gd magnetic moments are in the bc-plane, canted by 84(3)° and 46(4)° with respect to the crystallographic b-axis. This splitting into two magnetically inequivalent sites is confirmed by our 5 K Gd Mössbauer results. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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