Hyperfine fields in a Ag/Fe magnetic multilayer probed with low energy spin polarized 8Li

T. A. Keeler; Z. Salman; K. H. Chow; B. Heinrich; M. D. Hossain; B. Kardasz; R. F. Kiefl; S. R. Kreitzman; W. A. MacFarlane; O. Mosendz; T. J. Parolin; D. Wang

doi:10.1016/j.physb.2005.11.020

Hyperfine fields in a Ag/Fe magnetic multilayer probed with low energy spin polarized ⁸Li

T. A. Keeler
, Z. Salman
, K. H. Chow
, B. Heinrich
, M. D. Hossain
, B. Kardasz
, R. F. Kiefl^*
, S. R. Kreitzman
, W. A. MacFarlane
, O. Mosendz
, T. J. Parolin
, D. Wang

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

8 Scopus citations

Abstract

A beam of low energy Li8 has been used to probe the hyperfine field distribution in a magnetic multilayer composed of Au(4nm)/Ag(80nm)/Fe(2nm) grown on a GaAs substrate. The β-NMR frequency spectrum is shown to be a strong function of the implantation energy reflecting the depth dependence of the local hyperfine fields. Correlating the spectra with TRIM.SP implantation profiles allows us to identify signals from the GaAs, Ag and Au layers. The frequency spectrum in Ag is a strong function of energy. A very narrow line, and corresponding distribution of hyperfine fields, is observed when the beam in centered well away from the Fe whereas a much broader distribution is observed when the Li stops close to the Fe. These results demonstrate that low energy β-NMR can act as a sensitive probe of the induced magnetism in the otherwise non-magnetic Ag spacer layers.

Original language	English
Pages (from-to)	79-82
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	374-375
DOIs	https://doi.org/10.1016/j.physb.2005.11.020
State	Published - 31 Mar 2006
Externally published	Yes
Event	Proceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance - Duration: 8 Aug 2005 → 12 Aug 2005

Keywords

Hyperfine coupling
Interlayer exchange coupling
Magnetic multilayers
β-NMR

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/j.physb.2005.11.020

Cite this

@article{2719b4d877a841ea9d5de545101dd8e8,

title = "Hyperfine fields in a Ag/Fe magnetic multilayer probed with low energy spin polarized 8Li",

abstract = "A beam of low energy Li8 has been used to probe the hyperfine field distribution in a magnetic multilayer composed of Au(4nm)/Ag(80nm)/Fe(2nm) grown on a GaAs substrate. The β-NMR frequency spectrum is shown to be a strong function of the implantation energy reflecting the depth dependence of the local hyperfine fields. Correlating the spectra with TRIM.SP implantation profiles allows us to identify signals from the GaAs, Ag and Au layers. The frequency spectrum in Ag is a strong function of energy. A very narrow line, and corresponding distribution of hyperfine fields, is observed when the beam in centered well away from the Fe whereas a much broader distribution is observed when the Li stops close to the Fe. These results demonstrate that low energy β-NMR can act as a sensitive probe of the induced magnetism in the otherwise non-magnetic Ag spacer layers.",

keywords = "Hyperfine coupling, Interlayer exchange coupling, Magnetic multilayers, β-NMR",

author = "Keeler, \{T. A.\} and Z. Salman and Chow, \{K. H.\} and B. Heinrich and Hossain, \{M. D.\} and B. Kardasz and Kiefl, \{R. F.\} and Kreitzman, \{S. R.\} and MacFarlane, \{W. A.\} and O. Mosendz and Parolin, \{T. J.\} and D. Wang",

year = "2006",

month = mar,

day = "31",

doi = "10.1016/j.physb.2005.11.020",

language = "English",

volume = "374-375",

pages = "79--82",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

note = "Proceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance ; Conference date: 08-08-2005 Through 12-08-2005",

}

TY - JOUR

T1 - Hyperfine fields in a Ag/Fe magnetic multilayer probed with low energy spin polarized 8Li

AU - Keeler, T. A.

AU - Salman, Z.

AU - Chow, K. H.

AU - Heinrich, B.

AU - Hossain, M. D.

AU - Kardasz, B.

AU - Kiefl, R. F.

AU - Kreitzman, S. R.

AU - MacFarlane, W. A.

AU - Mosendz, O.

AU - Parolin, T. J.

AU - Wang, D.

PY - 2006/3/31

Y1 - 2006/3/31

N2 - A beam of low energy Li8 has been used to probe the hyperfine field distribution in a magnetic multilayer composed of Au(4nm)/Ag(80nm)/Fe(2nm) grown on a GaAs substrate. The β-NMR frequency spectrum is shown to be a strong function of the implantation energy reflecting the depth dependence of the local hyperfine fields. Correlating the spectra with TRIM.SP implantation profiles allows us to identify signals from the GaAs, Ag and Au layers. The frequency spectrum in Ag is a strong function of energy. A very narrow line, and corresponding distribution of hyperfine fields, is observed when the beam in centered well away from the Fe whereas a much broader distribution is observed when the Li stops close to the Fe. These results demonstrate that low energy β-NMR can act as a sensitive probe of the induced magnetism in the otherwise non-magnetic Ag spacer layers.

AB - A beam of low energy Li8 has been used to probe the hyperfine field distribution in a magnetic multilayer composed of Au(4nm)/Ag(80nm)/Fe(2nm) grown on a GaAs substrate. The β-NMR frequency spectrum is shown to be a strong function of the implantation energy reflecting the depth dependence of the local hyperfine fields. Correlating the spectra with TRIM.SP implantation profiles allows us to identify signals from the GaAs, Ag and Au layers. The frequency spectrum in Ag is a strong function of energy. A very narrow line, and corresponding distribution of hyperfine fields, is observed when the beam in centered well away from the Fe whereas a much broader distribution is observed when the Li stops close to the Fe. These results demonstrate that low energy β-NMR can act as a sensitive probe of the induced magnetism in the otherwise non-magnetic Ag spacer layers.

KW - Hyperfine coupling

KW - Interlayer exchange coupling

KW - Magnetic multilayers

KW - β-NMR

UR - https://www.scopus.com/pages/publications/33644775522

U2 - 10.1016/j.physb.2005.11.020

DO - 10.1016/j.physb.2005.11.020

M3 - Conference article

AN - SCOPUS:33644775522

SN - 0921-4526

VL - 374-375

SP - 79

EP - 82

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - Proceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance

Y2 - 8 August 2005 through 12 August 2005

ER -