A study of the Fe site hyperfine field and magnetic moment in the Heusler alloy Ni<sub>2</sub>Mn<sub>0.9</sub>Fe<sub>0.1</sub>Sn
C C M Campbell; J A Cameron; C C M Campbell; Phys. Dept., McMaster Univ., Hamilton, Ont., Canada; J A Cameron; Phys. Dept., McMaster Univ., Hamilton, Ont., Canada
Журнал:
Journal of Physics F: Metal Physics
Дата:
1978-07-01
Аннотация:
The Fe site hyperfine field has been measured in the Heusler alloy Ni<sub>2</sub>Mn<sub>0.9</sub>Fe<sub>0.1</sub>Sn using the Mossbauer effect. A value of 193+or-1 kOe was obtained at 110K. The magnetic moment per molecule was measured using a vibrating sample magnetometer. A value of 4.10+or-0.04 mu <sub>B</sub> was obtained at 4K. Assuming a value of 4 mu <sub>B</sub> per Mn atom, this implies that the magnetic moment associated with the Fe site is 5.0+or-0.4 mu <sub>B</sub>. This result has been interpreted using a model for the magnetic coupling in which the dominant interaction aligning the Mn spins is by way of the Sn atoms.
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