J. Phys. IV France 112 (2003) 993
Lorentz study of magnetic domains in Heusler-type ferromagnetic shape memory alloysM. De Graef1, Y. Kishi2, Y. Zhu3 and M. Wuttig2
1 Carnegie Mellon University, Department of Materials Science and Engineering, 5000 Forbes Avenue, Pittsburgh, PA 15213-3890, U.S.A.
2 University of Maryland, Department of Materials and Nuclear Engineering, Stadium Drive, Bldg. 090, College Park, MD 20742-2115, U.S.A.
3 Brookhaven National Laboratory, Division of Materials Science, Upton, NY 11973-5000, U.S.A.
We report on magnetic domain observations using in-situ Lorentz microscopy of the ferromagnetic shape memory alloys of the type Ni 2MnGa and Co 2NiGa. The domain configurations are analyzed by means of the Transport-of-Intensity phase reconstruction method.
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