Hanuš Seiner, Vít Kopecký, Michal Landa and Oleg Heczko Elasticity and magnetism of Ni2 MnGa premartensitic tweed physica status solidi (b) 251
Premartensite transformation of cubic austenite is characterised by strong softening of the diagonal shear modulus, which is strongly affected by magnetic field. The martensitic transformation of premartensite, in contrast, is characterised by softening of the basal shear modulus while diagonal shear modulus steadily increases toward transformation. Seiner et al. show that a particular modulated structure of premartensite can explain this experimental observation.
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