Hyperfine fields in an Ag/Fe multilayer film investigated with 8Li β-detected NMR

被引：14
|
作者：
Keeler, T. A. [1 ]
Salman, Z. [2 ]
Chow, K. H. [3 ]
Heinrich, B. [4 ]
Hossian, M. D. [1 ]
Kardasz, B. [4 ]
Kiefl, R. F. [1 ,2 ]
Kreitzman, S. R. [2 ]
Levy, C. D. P. [2 ]
MacFarlane, W. A. [5 ]
Mosendz, O. [4 ]
Parolin, T. J. [5 ]
Pearson, M. R. [2 ]
Wang, D. [1 ]
机构：
[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
[2] TRIUMF, Vancouver, BC V6T 2A3, Canada
[3] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada
[4] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
[5] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada
来源：
PHYSICAL REVIEW B | 2008年 / 77卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.77.144429
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Low-energy beta-detected nuclear magnetic resonance was used to investigate the spatial dependence of the hyperfine magnetic fields induced by Fe in the nonmagnetic Ag of an Au(40 A)/Ag(200 A)/Fe(140 angstrom) (001) magnetic multilayer grown on GaAs. The resonance line shape in the Ag layer shows dramatic broadening compared to that of intrinsic Ag. This broadening is attributed to large magnetic fields induced in this layer by the magnetic Fe layer. We find that the induced hyperfine field in the Ag follows a power law decay away from the Ag/Fe interface with power -1.93(8), and a field extrapolated to 0.23(5) T at the interface.
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页数：5
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