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Baik, Jeong Min
Nano Energy and Environmental Materials Lab
Research Interests
  • Nanogenerators, antimicrobial material, catalysis, smart sensors

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Electronic structure and magnetism in transition metals doped 8-hydroxy-ouinoline aluminum

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Title
Electronic structure and magnetism in transition metals doped 8-hydroxy-ouinoline aluminum
Author
Baik, Jeong MinShon, YoonLee, Seung JooJeong, Yoon HeeKang, Tae WonLee, Jong-Lam
Keywords
CIRCULAR-DICHROISM; MAGNETORESISTANCE
Issue Date
2008-10
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.130, no.41, pp.13522 - +
Abstract
We report the room-temperature ferromagnetism in transition metals (Co, Ni)-doped 8-hydroxy-quinoline aluminum (Alq3) by thermal coevaporation of high purity metal and Alq3powders. For 5% Co-doped Alq3, a maximum magnetization of ∼0.33 μB/Co at 10 K was obtained and ferromagnetic behavior was observed up to 300 K. The Co atoms interact chemically with O atoms and provide electrons to Alq3, forming new states acting as electron trap sites. From this, it is suggested that ferromagnetism may be associated with the strong chemical interaction of Co atoms and Alq3 molecules.
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DOI
10.1021/ja805276p
ISSN
0002-7863
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MSE_Journal Papers
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