Investigating the Kinetics of the Magnetoelastic Transformation of Fe-Rh Magnetocaloric Alloys
Binary Fe100-xRhx (48 ¿ x 54) alloys exhibit record-breaking giant magnetocaloric effect near room temperature in terms of the adiabatic temperature change. This result is originated from the first order magnetoelastic phase transition that these alloys undergo when the CsCl-type crystal structure (B2) cell volume changes by around 1 % changing the magnetic structure from antiferromagnetic to ferromagnetic upon heating. In the last few years, several works have highlighted the poor repeatability in the magnetostructural phase-transition characteristics. One of the aspects highlighted by some authors is an intriguing crystal or magnetic structure kinetics. To obtain systematic information on the matter, we have investigated the time dependence of the isothermal magnetization within the magnetostructural transformation for the near-equiatomic Fe49Rh51 and Fe50Rh50 bulk alloys, finding magnetic transition timescales up to 200 s long. To include the effect of the temperature on the kinetics of the transformation, we propose a neutron diffraction experiment in D20 in which we will analyze the time evolution of the magnetic transformation of Fe49Rh51 and Fe50Rh50 bulk alloys.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
P. Alvarez-Alonso; BLANCO RODRIGUEZ Jesus Angel; CUELLO Gabriel Julio; GARRIDO ALVAREZ Jose Luis; Pedro Gorria / P. Gorria; LOPEZ GARCIA Javier; Kenny Padrón-Alemán and SANCHEZ-LLAMAZARES Jose L.. (2023). Investigating the Kinetics of the Magnetoelastic Transformation of Fe-Rh Magnetocaloric Alloys. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-25-290
This data is not yet public
This data is not yet public
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.