Journal ArticleDOI
A neutron resonance spin echo spectrometer for quasi-elastic and inelastic scattering
Robert Golub,Roland Gähler +1 more
TLDR
In this article, a modified neutron spin echo (NSE) spectrometer using high frequency spin flippers to replace the static spin flipper and the long magnetic precession field in each arm of the classical NSE setup was proposed.About:
This article is published in Physics Letters A.The article was published on 1987-07-13. It has received 170 citations till now. The article focuses on the topics: Neutron spin echo & Spin echo.read more
Citations
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Journal ArticleDOI
Diffusion of Water in Clays on the Microscopic Scale: Modeling and Experiment
TL;DR: Simulation highlights the difficulty in interpreting the EISF(Q) signal from powder clay samples used in experiments, and compares both directly and indirectly on the level of relaxation times after a model of atomic motion is applied.
Journal ArticleDOI
Neutron resonance spin echo—a new tool for high resolution spectroscopy
TL;DR: In this paper, the authors discuss the principles of these methods and discuss the present state of the art for high-resolution spectrometers with RF-flipper coils, which share several properties with the neutron spin echo technique.
Journal ArticleDOI
Direct measurement of individual phonon lifetimes in the clathrate compound Ba 7.81 Ge 40.67 Au 5.33
P.-F. Lory,Stéphane Pailhès,Valentina M. Giordano,Holger Euchner,Hong Duong Nguyen,Reiner Ramlau,Horst Borrmann,Marcus Schmidt,Michael Baitinger,M. Ikeda,P. Tomeš,Marek Mihalkovic,C. Allio,Mark R. Johnson,Helmut Schober,Yvan Sidis,Frederic Bourdarot,Louis Pierre Regnault,Jacques Ollivier,Silke Paschen,Yuri Grin,Marc de Boissieu +21 more
TL;DR: The achievement of a direct quantitative measurement of phonon lifetimes in a single crystal of the clathrate Ba7.81Ge40.67Au5.33 is shown, underlining the inability of state-of-the-art simulations to reproduce the experimental data and representing a crucial experimental input for theoretical developments.
Journal ArticleDOI
Diffusion of water in clays – microscopic simulation and neutron scattering
Natalie Malikova,Anthony Cadene,Virginie Marry,Emmanuelle Dubois,Pierre Turq,Jean-Marc Zanotti,Stéphane Longeville +6 more
TL;DR: In this article, the dynamics of water in porous charged media (montmorillonite clay) is investigated on the picosecond-timescale by quasi-elastic neutron scattering (TOF) and classical molecular dynamics simulations.
Journal ArticleDOI
Neutron resonance spin echo, bootstrap method for increasing the effective magnetic field
Roland Gähler,Robert Golub +1 more
TL;DR: In this article, it is shown that it is possible to use a bootstrap technique to increase the precession angle and hence the instrument resolution for a given maximum magnetic field intensity in Neutron Resonance Spin Echo (NRSE) spectrometry.
References
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Journal ArticleDOI
Neutron spin echo: A new concept in polarized thermal neutron techniques
TL;DR: In this article, a simple method to change and keep track of neutron beam polarization non-parallel to the magnetic field is described, which makes possible the establishment of a new focusing effect we call neutron spin echo.
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A high resolution neutron spectrometer for quasielastic scattering on the basis of spin-echo and magnetic resonance
Roland Gähler,Robert Golub +1 more
TL;DR: In this article, a high resolution neutron spectrometer was proposed, which combines the spin-echo principle with the separated coil magnetic resonance technique, which allows the replacement of high magnetic fields by low guide fields.
Journal ArticleDOI
Neutron spin-echo and three-axis spectrometers
TL;DR: In this article, the application of the neutron spin echo (NSE) technique to three-axis spectroscopy is discussed, which can be used to measure both phonon line widths and the wave vector distributions of (quasi-elastic scattering.
Journal ArticleDOI
Study of magnon dynamics in Fe near Tc by modified neutron spin echo techniques
B. Farago,F. Mezei +1 more
TL;DR: In this article, the principle of a new variant in Neutron Spin Echo (NSE) spectroscopy, called Intensity Modulation NSE, has been established, which extends the capabilities of NSE to the study of samples which fully depolarize the beam and also to the possibility of separate, independent investigation of spin-flip and non-spinflip scattering processes.