Related Experiment Video
Updated: Jul 15, 2025
12:20
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
Published on: October 5, 2013
14.7K
Robust Antiferromagnetic FeRh Films on Mica
Alberto Quintana1, Carlos Zarco1, Nico Dix1
1Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra 08193, Catalonia, Spain.
ACS Applied Electronic Materials
|October 2, 2023
Summary
Flexible iron-rhodium (FeRh) films were created using mica substrates, enabling a robust antiferromagnetic to ferromagnetic phase transition for memory applications. These high-quality films exhibit stable memory states resistant to magnetic fields.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Magnetism
Background:
- Iron-rhodium (FeRh) exhibits an antiferromagnetic to ferromagnetic phase transition above room temperature, making it suitable for antiferromagnetic memory elements.
- The sensitivity of FeRh's antiferromagnetic order to composition and crystallinity hinders its integration into flexible devices.
Purpose of the Study:
- To develop high-quality, flexible FeRh films suitable for integration into advanced electronic devices.
- To investigate the magnetic and transport properties of these flexible FeRh films, focusing on their phase transition and memory capabilities.
Main Methods:
- Synthesis of flexible FeRh films utilizing mica as a substrate.
- Mechanical exfoliation of the synthesized FeRh films from the mica substrate.
- Magnetic and transport measurements to characterize the phase transition and resistance states.
Main Results:
- High-quality, flexible FeRh films were successfully synthesized.
- The films exhibit a sharp antiferromagnetic to ferromagnetic phase transition.
- Two distinct, robust memory states were observed, stable under magnetic fields up to 10 kOe.
Conclusions:
- Flexible FeRh films with high crystalline quality can be fabricated using mica substrates.
- These films demonstrate a sharp phase transition and robust memory states, paving the way for flexible antiferromagnetic memory devices.
