Related Experiment Video
Updated: Mar 3, 2026
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Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
8.7K
Forced-ferromagnetic state in a Tm2Fe17H5 single crystal
E A Tereshina1, M D Kuz'min2, Y Skourski3
1Institute of Physics CAS, 18221 Prague, Czechia.
Summary
Researchers achieved a ferromagnetic state in a hydrogen-modified thulium-iron compound. This heavy rare-earth intermetallic material exhibits high magnetic polarization under a strong external magnetic field.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Magnetism
Background:
- Rare-earth iron intermetallic compounds (RE₂Fe₁₇) are known for their magnetic properties.
- Interstitial modification, such as hydrogenation, can significantly alter these properties.
- Thulium-iron (Tm-Fe) compounds are particularly sensitive to external magnetic fields.
Purpose of the Study:
- To investigate the ferromagnetic properties of hydrogen-modified Tm₂Fe₁₇.
- To determine the magnetic polarization achievable in Tm₂Fe₁₇H₅ under a high magnetic field.
- To explore the potential of interstitial modification for enhancing magnetic states in rare-earth intermetallics.
Main Methods:
- Synthesis of a single crystal Tm₂Fe₁₇.
- Interstitial hydrogen insertion to achieve Tm₂Fe₁₇H₅ (5 at.H/f.u.).
- Application of a high external magnetic field (57 T) to induce and measure the magnetic state.
Main Results:
- The hydrogen-modified Tm₂Fe₁₇H₅ compound successfully attained a ferromagnetic state.
- A high magnetic polarization of 2.25 T was recorded.
- The study demonstrates the effectiveness of interstitial hydrogenation in tuning magnetic properties.
Conclusions:
- Interstitial hydrogen modification can induce a ferromagnetic state in heavy rare-earth-iron intermetallics.
- Tm₂Fe₁₇H₅ exhibits significant magnetic polarization under high magnetic fields.
- This research opens avenues for developing advanced magnetic materials through controlled interstitial doping.
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