  The possibility of electric field control of magnetocaloric effect through
quasi-isostatic compression as a result of the converse piezoelectric effect
was demonstrated on cylindrical type magnetoelectric composite MnAs/PZT. It was
shown that an electric voltage of 100 V corresponding to an electric field of E
~0.3 kV/mm applied to the walls of the piezoelectric component PZT of the
MnAs/PZT composite contributes to an increase in the maximum adiabatic
temperature change by 0.2 K in the temperature range of the magnetostructural
phase transition of MnAs ~317 K at magnetic field change of 1.8 T. Calculations
using the finite element method have shown that an electric field voltage of
100 V is capable of creating a quasi-isostatic mechanical stress in the region
inside a cylindrical PZT tube of ~3 MPa. Moreover, in the region of weak
pressures up to 10 MPa, the contribution to the MCE from piezo compression
linearly depends on the electrical voltage that can be used for control the MCE
