Magnetothermal study of a Dy-stuffed spin ice: Dy_2(Dy_xTi_(2_x))O_(7-x/2)

摘要

We have studied the thermodynamics of the stuffed spin ice material, Dy_2(Dy_xTi_(2_x))O_(7-x/2), in which additional Dy~(3+) replace Ti~(4+) in the pyrochlore Dy_2Ti_2O_7. Heat capacity measurements indicate that these materials lose the spin ice zero po