Current status of room temperature magnetic compensation in impurity-doped Mn4N epitaxial thin films
Tomohiro Yasuda, Takashi Suemasu · 2026
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Description
Tomohiro Yasuda and Takashi Suemasu survey a 2026 spintronics topic: making the ferrimagnet Mn4N hit magnetic compensation at room temperature by doping it with impurities. Mn4N needs no rare-earth elements, carries small magnetization near 100 kA per meter, and shows strong perpendicular anisotropy. Near compensation points, magnetization can flip and domain walls can race far faster than usual.
The review compares films doped with copper, silver, gold, and palladium against earlier nickel and chromium work, all grown on strontium titanate substrates. Results cover how each impurity shifts magnetization and angular momentum balance. The authors also present ultrathin platinum films, about 4 nm thick, grown on magnesium oxide for injecting spin current through the spin Hall effect. They frame the package as groundwork for fast spin-torque devices.
Catalog record
| CREATOR | Tomohiro Yasuda, Takashi Suemasu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 67352 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |