Stress induced martensite in epitaxial Ni-Mn-Ga films deposited on MgO(001)

摘要

Biaxial tensile stress in epitaxial Ni_(52)Mn_(23)Ga_(25) films on MgO(001) was measured at different temperatures using an adapted x-ray stress analysis. A stress of up to 105 MPa originates from different thermal expansions of substrate and film and par