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首页> 外文期刊>Physica, B. Condensed Matter >Room-temperature ferromagnetism and hydrogen shallow donors in rare-earth Eu-doped ZnO nanorods
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Room-temperature ferromagnetism and hydrogen shallow donors in rare-earth Eu-doped ZnO nanorods

机译:稀土欧盟掺杂ZnO纳米棒的室温铁磁性和氢涂料

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摘要

Prominent room-temperature ferromagnetism in rare-earth Eu-doped ZnO nanorods has been investigated by means of magnetization and electron paramagnetic resonance (EPR) measurements. The magnetism of the unhydrogenated Eu-doped ZnO nanorods is explained by a spin-1/2 species, attributed to the Zn vacancies. In the hydrogenated Eu-doped ZnO nanorods, a spin-1 species, attributed to the Zn vacancies coupled to the hydrogen shallow donors, would give rise to a slightly enhanced magnetization. The hydrogen shallow donors, identified by the electron paramagnetic resonance (EPR) measurements, can be taken to be responsible for the changes in the spin states and magnetization of the Eu-doped ZnO nanorods.
机译:通过磁化和电子顺磁共振(EPR)测量,研究了稀土欧盟掺杂ZnO纳米棒中的显着室温铁磁性。 未氢化的Eu掺杂ZnO纳米棒的磁性由旋转-1 / 2种来解释,归因于Zn空位。 在氢化的EU掺杂的ZnO纳米棒中,归因于源于氢浅供体的Zn空位的旋转1种,将产生略微增强的磁化。 通过电子顺磁共振(EPR)测量鉴定的氢浅供体可以负责旋转状态和Eu掺杂ZnO纳米棒的磁化的变化。

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