Y.D. Wang، نويسنده , , E.W. Huang، نويسنده , , Y. Ren، نويسنده , , Z.H. Nie، نويسنده , , G. Wang، نويسنده , , Y.D. Liu، نويسنده , , J.N. Deng، نويسنده , , T. H. Choo، نويسنده , , P.K. Liaw، نويسنده , , D.E. Brown، نويسنده , , L. ZUO، نويسنده ,
The magnetic-field-induced phase transition behavior in a Ni45Co5Mn36.6In13.4 alloy, with and without an imposed stress, at various temperatures has been studied in situ by high-energy synchrotron X-ray diffraction. The crystallographic structure and microstructural characteristics in response to multiple external parameters (stress, temperature and magnetic fields) are traced, enabling the reversible and irreversible magnetic-field-induced transformations to be understood. The transformation kinetics as a function of temperature and magnetic field is determined by monitoring the changes of the specified diffraction peaks, which may be accurately described by the Clausius–Clapeyron relation. The X-ray absorption topographic measurements give direct evidence that inhomogeneous deformation occurred during magnetic-field-induced transformation in the polycrystalline materials. These investigations provide the fundamental structural information and functional characteristics that is crucial for the potential applications of this sort of new functional material.