ULtimate MAGnetic characterization (ULMAG) at the ID12 beamline of ESRF: from element‐specific properties to macroscopic functionalities

We present a novel instrument designed for advanced magnetic study, installed at the ID12 beamline of the European Synchrotron Radiation Facility in Grenoble, France. This instrument offers the unique capability to simultaneously measure element‐specific microscopic and macroscopic properties related to the magnetic, electronic and structural characteristics of materials. In addition to X‐ray absorption, X‐ray magnetic circular dichroism alongside X‐ray diffraction patterns, the macroscopic magnetization, volume changes, caloric properties and electrical resistivity of magnetic materials could be measured strictly under the same experimental conditions as a function of both magnetic field (up to ±7 T) and temperature (ranging from 2.05 K to 325 K). To demonstrate the capability of this new instrument, we present two case studies highlighting its performance in investigating first‐order magneto‐structural phase transitions, namely in DyCo₂ and FeRh alloys.