Local magnetic properties of nanocrystalline Ni and Pd-Fe

被引：2
|
作者：
Lauer, St. [1 ]
Guan, Z. [1 ]
Wolf, H. [1 ]
Natter, H. [2 ]
Schmelzer, M. [2 ]
Hempelmann, R. [2 ]
Wichert, Th. [1 ]
机构：
[1] Technische Physik, Postfach 151150, D-66041 Saarbrucken, Germany
[2] Physikalische Chemie, Universität des Saarlandes, Postfach 151150, D-66041 Saarbrucken, Germany
来源：
Nanostructured Materials | 1999年 / 12卷 / 05期
关键词：
Annealing - Ball milling - Electrodeposition - Energy dispersive spectroscopy - Grain boundaries - Indium - Magnetic fields - Magnetic properties - Nickel - Palladium alloys - Solid solutions - X ray diffraction analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Ferromagnetic nanocrystalline materials, consisting of Ni and Pd-Fe, are investigated on an atomic scale by perturbed γγ-angular correlation spectroscopy, complemented by X-ray diffraction and energy dispersive X-ray spectroscopy. Nanocrystalline Ni was produced by pulsed electrodeposition and simultaneously doped with 111In probe atoms. Besides the local magnetic field known from polycrystalline Ni, a second component is detected, which is attributed to a magnetic perturbation due to grain boundaries. During ball-milling of Pd, a Pd0.70Fe0.30 solid solution caused by Fe impurities is obtained, which is ferromagnetic at room temperature. Annealing between 600 K and 1000 K transforms this solid solution into the compound γ2-Pd3Fe.
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页码：955 / 958
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