Chemically Controllable Magnetic Transition Temperature and Magneto‐Elastic Coupling in MnZnSb Compounds

Magneto-caloric materials offer the possibility to design environmentally friendlier thermal management devices compared widely used gas-based systems. The challenges develop this solid-state based technology lie in difficulty of finding presenting a large magneto-caloric effect over broad temperature span together with suitable secondary application parameters such as low heat capacity and high conductivity. A series compounds derived from PbFCl structure is investigated using combination computational experimental methods focusing on change cell volume magnetic non-magnetic ground states. Scaling analysis properties determines that they are second order phase transition ferromagnets entropy driven by coupling magneto-elastic strain square-net through determined neutron synchrotron X-ray diffraction. primary related measured experimentally, c/a parameter identified an accurate proxy control transition. Chemical substitution affords tuning Curie between 252 322 K. predictive machine learning model for developed guide future exploratory synthesis.