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Structure dependence of optical spectra of ferromagnetic Heusler alloy Ni–Mn–Ga

✍ Scribed by J.F. Wan; J.N. Wang

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
239 KB
Volume
355
Category
Article
ISSN
0921-4526

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✦ Synopsis

The influence of structural transformation on the optical properties of Heusler alloy Ni-Mn-Ga has been investigated by using Density Functional Theory code CASTEP. The calculated optical refractive and absorption spectra, the off-diagonal components of the dielectric function and the optical conductivity for L2 1 structure and the tetragonal phase show a noticeable structural dependence which were confirmed by the experiments (Y.V. Kudryavtsev et al., Phys. Rev. B 66 (2002) 115114).

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