Enhanced off-specular scattering in magnetic neutron waveguides

S. V. Kozhevnikov; F. Ott; E. Kentzinger; A. Paul

doi:10.1016/j.physb.2007.02.047

Enhanced off-specular scattering in magnetic neutron waveguides

S. V. Kozhevnikov^*, F. Ott, E. Kentzinger, A. Paul

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

We are developing magnetic neutron waveguides (NWG) consisting of thin films of low-optical index sandwiched between two layers of high-optical index. In such structures, the neutron wave function is strongly localized in the guiding layer and the sensitivity to interface scattering effects is enhanced. The samples were characterized on the reflectometer HADAS (FZ Jülich, Germany) by specular reflectivity and off-specular scattering for different magnetic states of the permalloy layers. We show that the waveguide structure strongly enhances the off-specular scattering.

Original language	English
Pages (from-to)	68-70
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	397
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physb.2007.02.047
State	Published - 15 Jul 2007
Externally published	Yes

Keywords

Interface roughness
Off-specular
Polarized neutrons
Reflectivity
Waveguide

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10.1016/j.physb.2007.02.047

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title = "Enhanced off-specular scattering in magnetic neutron waveguides",

abstract = "We are developing magnetic neutron waveguides (NWG) consisting of thin films of low-optical index sandwiched between two layers of high-optical index. In such structures, the neutron wave function is strongly localized in the guiding layer and the sensitivity to interface scattering effects is enhanced. The samples were characterized on the reflectometer HADAS (FZ J{\"u}lich, Germany) by specular reflectivity and off-specular scattering for different magnetic states of the permalloy layers. We show that the waveguide structure strongly enhances the off-specular scattering.",

keywords = "Interface roughness, Off-specular, Polarized neutrons, Reflectivity, Waveguide",

author = "Kozhevnikov, {S. V.} and F. Ott and E. Kentzinger and A. Paul",

note = "Funding Information: Authors are thankful to Drs. V.K. Ignatovich and Yu.V. Nikitenko for fruitful discussions. This research project has been supported by the European Commission under the 6th Framework Programme through the Key Action: Strengthening the European Research Area, Research Infrastructures, Contract no.: RII3-CT-2003-505925. S.K. is indebted to PNCMI-2006 Organizing Committee for the financial support (Grant DFG no. 436 114/88/06).",

year = "2007",

month = jul,

day = "15",

doi = "10.1016/j.physb.2007.02.047",

language = "英语",

volume = "397",

pages = "68--70",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

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T1 - Enhanced off-specular scattering in magnetic neutron waveguides

AU - Kozhevnikov, S. V.

AU - Ott, F.

AU - Kentzinger, E.

AU - Paul, A.

N1 - Funding Information: Authors are thankful to Drs. V.K. Ignatovich and Yu.V. Nikitenko for fruitful discussions. This research project has been supported by the European Commission under the 6th Framework Programme through the Key Action: Strengthening the European Research Area, Research Infrastructures, Contract no.: RII3-CT-2003-505925. S.K. is indebted to PNCMI-2006 Organizing Committee for the financial support (Grant DFG no. 436 114/88/06).

PY - 2007/7/15

Y1 - 2007/7/15

N2 - We are developing magnetic neutron waveguides (NWG) consisting of thin films of low-optical index sandwiched between two layers of high-optical index. In such structures, the neutron wave function is strongly localized in the guiding layer and the sensitivity to interface scattering effects is enhanced. The samples were characterized on the reflectometer HADAS (FZ Jülich, Germany) by specular reflectivity and off-specular scattering for different magnetic states of the permalloy layers. We show that the waveguide structure strongly enhances the off-specular scattering.

AB - We are developing magnetic neutron waveguides (NWG) consisting of thin films of low-optical index sandwiched between two layers of high-optical index. In such structures, the neutron wave function is strongly localized in the guiding layer and the sensitivity to interface scattering effects is enhanced. The samples were characterized on the reflectometer HADAS (FZ Jülich, Germany) by specular reflectivity and off-specular scattering for different magnetic states of the permalloy layers. We show that the waveguide structure strongly enhances the off-specular scattering.

KW - Interface roughness

KW - Off-specular

KW - Polarized neutrons

KW - Reflectivity

KW - Waveguide

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U2 - 10.1016/j.physb.2007.02.047

DO - 10.1016/j.physb.2007.02.047

M3 - 文章

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SN - 0921-4526

VL - 397

SP - 68

EP - 70

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1-2

ER -

Enhanced off-specular scattering in magnetic neutron waveguides

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Keywords

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