We investigated the magnetic properties of hydrogen-plasma-treated
ZnO single crystals by using superconducting quantum interferometer device
magnetometry. In agreement with the expected hydrogen penetration depth, we
found that ferromagnetic behavior is present in the first 20 nm of the H-treated
surface of ZnO with magnetization at saturation up to 6 emu g−1 at 300K and
a Curie temperature of Tc & 400 K. In the ferromagnetic samples, a hydrogen
concentration of a few atomic per cent in the first 20 nm of the surface layer
was determined by nuclear reaction analysis. The saturation magnetization of
H-treated ZnO increases with the concentration of hydrogen.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:80185 |
| Date | 27 July 2022 |
| Creators | Khalid, Muhammad, Esquinazi, Pablo, Spemann, Daniel, Anwand, Wolfgang, Brauer, G. |
| Publisher | IOP Publishing |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 063017 |
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