59Co nuclear magnetic resonance studies of magnetic excitations in ferromagnetic nanowires

被引：9
|
作者：
Scarani, V [1 ]
De Riedmatten, H [1 ]
Ansermet, JP [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, Inst Phys Expt, CH-1015 Lausanne, Switzerland
来源：
APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 07期
关键词：
D O I：
10.1063/1.125624
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic excitations of cobalt-based nanowires are investigated by measuring the nuclear spin-lattice relaxation (SLR) of Co-59 in zero and 1 T applied field. Co/Cu multilayers are shown to have a faster SLR than bulk Co. This relaxation is of magnetic origin and due to the layered structure. Oxidized wires have a temperature dependence of the SLR which provides direct evidence of the thermal fluctuation of the uncompensated spins of the CoO grains at the surface of the wires. (C) 2000 American Institute of Physics. [S0003-6951(00)01907-0].
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收藏
页码：903 / 905
页数：3
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