Versatile Device for the Study of Coupling Properties in Multifunctional Materials. Example: Ni-(Co)-Mn-In Heusler Materials
Résumé
We report on a versatile experimental setup for the study of the electro-magneto-elastothermal coupling for bulk materials having coupling properties. The setup enables measurement of stress and electrical resistivity in a 80 K-450 K temperature range under controlled uniaxial pressure in a magnetic field up to 8 T. The strong influence of uniaxial pressure and magnetic field on strain and transport properties is shown for Ni-Co-Mn-In Heusler single crystal material. Phase transformation, magnetostress and Magnetic Field Induced Phase Transformation and elastocaloric effect can be estimated using this versatile setup. This device is very complementary to the studies focused on the modeling of Thermo-Electro-Magneto-Mechanical behavior for functional materials.
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