A spin-echo resolved grazing incidence scattering setup for the neutron interrogation of buried nanostructures

J. Major, Alexei Vorobiev, Adrian Rühm, Ralf Maier, Márton Major, Markus Mezger, Max Nülle, Helmut Dosch, Gian P. Felcher, Ṕter Falus, Thomas Keller, Roger Pynn

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We present a dedicated experimental spin-echo resolved grazing incidence scattering (SERGIS) setup for the investigation of surfaces and thin films exhibiting large lateral length scales. This technique uses the neutron spin to encode one in-plane component of the wave-vector transfer in a grazing angle scattering experiment. Instead of the scattering angle, the depolarization of the scattered beam is measured. This allows one to achieve a very high in-plane momentum resolution without collimation of the incident neutron beam in the corresponding direction. SERGIS can therefore offer an alternative or complementary method to conventional grazing incidence neutron scattering experiments. We describe the experimental setup installed at the neutron sources ILL (Grenoble) and FRM II (Garching) and present data obtained with this setup on various samples exhibiting characteristic mesoscopic length scales in the range of several hundred nanometers. We also derive general formulas and error margins for the analysis and interpretation of SERGIS data and apply them to the cases of a one-dimensional structure and of an island morphology.

Original languageEnglish
Article number123903
JournalReview of Scientific Instruments
Volume80
Issue number12
DOIs
Publication statusPublished - 2009

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interrogation
grazing incidence
Nanostructures
echoes
Neutrons
Scattering
neutrons
scattering
Neutron beams
Neutron sources
neutron beams
Depolarization
grazing
collimation
neutron sources
Neutron scattering
depolarization
margins
Momentum
neutron scattering

ASJC Scopus subject areas

  • Instrumentation

Cite this

A spin-echo resolved grazing incidence scattering setup for the neutron interrogation of buried nanostructures. / Major, J.; Vorobiev, Alexei; Rühm, Adrian; Maier, Ralf; Major, Márton; Mezger, Markus; Nülle, Max; Dosch, Helmut; Felcher, Gian P.; Falus, Ṕter; Keller, Thomas; Pynn, Roger.

In: Review of Scientific Instruments, Vol. 80, No. 12, 123903, 2009.

Research output: Contribution to journalArticle

Major, J, Vorobiev, A, Rühm, A, Maier, R, Major, M, Mezger, M, Nülle, M, Dosch, H, Felcher, GP, Falus, Ṕ, Keller, T & Pynn, R 2009, 'A spin-echo resolved grazing incidence scattering setup for the neutron interrogation of buried nanostructures', Review of Scientific Instruments, vol. 80, no. 12, 123903. https://doi.org/10.1063/1.3240598
Major, J. ; Vorobiev, Alexei ; Rühm, Adrian ; Maier, Ralf ; Major, Márton ; Mezger, Markus ; Nülle, Max ; Dosch, Helmut ; Felcher, Gian P. ; Falus, Ṕter ; Keller, Thomas ; Pynn, Roger. / A spin-echo resolved grazing incidence scattering setup for the neutron interrogation of buried nanostructures. In: Review of Scientific Instruments. 2009 ; Vol. 80, No. 12.
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AU - Major, Márton

AU - Mezger, Markus

AU - Nülle, Max

AU - Dosch, Helmut

AU - Felcher, Gian P.

AU - Falus, Ṕter

AU - Keller, Thomas

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