Pd Nanoparticle Embedded with Only One Co Atom Behaves as a Single-Particle Magnet(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
- 論文の詳細を見る
Single molecular magnets and single-particle magnets have been intensively investigated from the viewpoints of spintronics devices. We employ the giant magnetic moment effect on magnetic impurities embedded in Pd in designing a single-nanoparticle magnet. A transition metal magnetic impurity such as Co has a giant magnetic moment in Pd metal due to the exchange enhancement effect. As the interaction range of the effect is ca. 1nm from the magnetic impurity center, all Pd atoms are spin-polarized in a Pd nanoparticle having a radius smaller than the range. Here, we unveil this feature experimentally and show that a Pd nanoparticle containing only one Co atom exhibits a single-domain nanomagnet behavior with a blocking temperature of 3K.
- 社団法人日本物理学会の論文
- 2008-10-15
著者
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ENOKI Toshiaki
Department of Chemistry,Graduate School of Science and Engineering,Tokyo Institute of Technology
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MIYAZAKI Akira
Department of Biochemistry, Showa University School of Medicine
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Fukui Ken-ichi
Department Of Chemistry Graduate Of Science The University Of Tokyo
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Fukui Ken-ichi
Department Of Chemistry Graduate School Of Science And Engineering Tokyo Institute Of Technology
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ITO Yoshikazu
Department of Nursing Science, Gunma University College of Health Sciences
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Yokoyama Toshihiko
Institute For Molecular Science
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VALIYAVEETTIL Suresh
Department of Chemistry, National University of Singapore
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Ito Yoshikazu
Department Of Chemistry Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Enoki Toshiaki
Department Of Chemistory Tokyo Inst.of Technology
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Miyazaki Akira
Department Of Biochemistry Kumamoto University School Of Medicine
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Valiyaveettil Suresh
Department Of Chemistry National University Of Singapore
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Miyazaki Akira
Department Of Biochemistry Faculty Of Medicine Showa University
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Miyazaki Akira
Department Of Chemistry Graduate School Of Science And Engineering Tokyo Institute Of Technology
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ENOKI Toshiaki
Department of Chemistry, Graduate School of Science and Engineering,Tokyo Institute of Technology
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Miyazaki Akira
Department of Chemistry, Graduate School of Science and Engineering,Tokyo Institute of Technology
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