Magnetic properties of ZnO nanoparticles
Magnetic properties of ZnO nanoparticles
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DOI：
10.1021/nl070198m
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发表时间：
2007-06-01
期刊：
影响因子：
10.8
通讯作者：
Hernando, A.
中科院分区：
文献类型：
--
作者：
Garcia, M. A.;Merino, J. M.;Hernando, A.
我们通过实验表明，在不掺杂磁性杂质的情况下，可以在ZnO纳米颗粒中诱导室温铁磁性行为，而只需诱导其电子构型的改变。用不同的有机分子覆盖ZnO纳米颗粒（类似于10纳米大小）会产生取决于特定分子的电子构型的改变，正如光致发光和x射线吸收光谱所证明的那样，并改变其磁性，从抗磁性到类铁磁性的变化行为。
We experimentally show that it is possible to induce room-temperature ferromagnetic-like behavior in ZnO nanoparticles without doping with magnetic impurities but simply inducing an alteration of their electronic configuration. Capping ZnO nanoparticles (similar to 10 nm size) with different organic molecules produces an alteration of their electronic configuration that depends on the particular molecule, as evidenced by photoluminescence and X-ray absorption spectroscopies and altering their magnetic properties that varies from diamagnetic to ferromagnetic-like behavior.