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The RESEDA (Resonant Spin-Echo for Diverse Applications) instrument has been optimized for neutron scattering measurements of quasi-elastic and inelastic processes over a wide parameter range. One spectrometer arm of RESEDA is configured…

Instrumentation and Detectors · Physics 2022-11-22 J. C. Leiner , C. Franz , J. K. Jochum , C. Pfleiderer

We report proof-of-principle measurements at the neutron resonance spin echo spectrometer RESEDA (MLZ) under large magnetic fields by means of Modulation of IntEnsity with Zero Effort (MIEZE). Our study demonstrates the feasibility of…

Instrumentation and Detectors · Physics 2015-06-19 J. Kindervater , N. Martin , W. Häußler , M. Krautloher , C. Fuchs , S. Mühlbauer , J. A. Lim , E. Blackburn , P. Böni , C. Pfleiderer

The generation of high frequency oscillatory magnetic fields represents a fundamental component underlying the successful implementation of neutron resonant spin-echo spectrometers, a class of instrumentation critical for the…

Strongly Correlated Electrons · Physics 2020-11-30 J. K. Jochum , A. Hecht , O. Soltwedel , C. Fuchs , J. Frank , E. Faulhaber , J. C. Leiner , C. Pfleiderer , C. Franz

We propose a Modulation of intensity with zero effort (MIEZE) set-up for high-resolution neutron spectroscopy at momentum transfers up to 3\r{A}$^{-1}$,energy transfers up to ~ 20 meV, and an energy resolution in the $\mu$eV-range using…

Strongly Correlated Electrons · Physics 2022-11-21 Johanna K. Jochum , Christian Franz , Thomas Keller , Christian Pfleiderer

We propose the design of a Resonance SPin-echo spECtrometer for exTreme studies, RESPECT, that is ideally suited for the exploration of non-dispersive processes such as diffusion, crystallization, slow dynamics, tunneling processes, crystal…

Instrumentation and Detectors · Physics 2016-08-03 Robert Georgii , Jonas Kindervater , Christian Pfleiderer , Peter Böni

Recently, a new neutron spectroscopy for the dynamics in complex (bio-) systems has been proposed [A. Benedetto, and G. J. Kearley, Sci. Rep. 6, 34266, (2016)]. This spectroscopy is ideal where only the overall relaxation time in a…

Instrumentation and Detectors · Physics 2017-02-21 Antonio Benedetto , Gordon J. Kearley

Recent progress in neutron spin-echo spectroscopy by means of longitudinal Modulation of IntEnsity with Zero Effort (MIEZE) is reviewed. Key technical characteristics are summarized which highlight that the parameter range accessible in…

The neutron resonance spin echo (NRSE) technique has the potential to increase the Fourier time and energy resolution in neutron scattering by using radio-frequency (rf) neutron spin-flippers. However, aberrations arising from variations in…

Instrumentation and Detectors · Physics 2023-03-15 Stephen J. Kuhn , Sam McKay , Fankang Li , Robert M. Dalgliesh , Eric Dees , Kaleb Burrage , Jiazhou Shen , Roger Pynn

A novel neutron spin resonance technique is presented based on the well-know neutron spin echo method. In a first proof-of-principle measurement using a monochromatic neutron beam, it is demonstrated that relative velocity changes of down…

Instrumentation and Detectors · Physics 2016-04-11 Florian M. Piegsa , Patrick Hautle , Christian Schanzer

The effect of temperature dependent asymmetric line broadening is investigated in Cu(NO$_3$)$_2\cdot$2.5D$_2$O, a model material for a 1-D bond alternating Heisenberg chain, using the high resolution neutron-resonance spin-echo (NRSE)…

Strongly Correlated Electrons · Physics 2016-05-04 Felix Groitl , Thomas Keller , Katharina Rolfs , D. Alan Tennant , Klaus Habicht

The Neutron Spin Echo (NSE) variant MIEZE (Modulation of IntEnsity by Zero Effort), where all beam manipulations are performed before the sample position, offers the possibility to perform low background SANS measurements in strong magnetic…

Instrumentation and Detectors · Physics 2015-03-19 G. Brandl , R. Georgii , W. Häußler , S. Mühlbauer , P. Böni

Studying the prototypical ferromagnetic superconductor UGe$_2$ we demonstrate the potential of the Modulated IntEnsity by Zero Effort (MIEZE) technique---a novel neutron spectroscopy method with ultra-high energy resolution of at least…

Strongly Correlated Electrons · Physics 2019-01-30 F. Haslbeck , S. Säubert , M. Seifert , C. Franz , M. Schulz , A. Heinemann , T. Keller , Pinaki Das , J. D. Thompson , E. D. Bauer , C. Pfleiderer , M. Janoschek

Modulation of Intensity Emerging from Zero Effort (MIEZE) is a neutron resonant spin echo technique which allows one to measure time correlation scattering functions in materials by implementing radio-frequency (RF) intensity modulation at…

Instrumentation and Detectors · Physics 2021-05-04 Ryan Dadisman , Georg Ehlers , Fankang Li

We report a method to determine the phase and amplitude of sinusoidally modulated event rates, binned into four bins per oscillation, based on data generated at the resonant neutron spin-echo spectrometer RESEDA. The presented algorithm…

Strongly Correlated Electrons · Physics 2022-07-20 J. K. Jochum , L. Spitz , C. Franz , A. Wendl , J. C. Leiner , C. Pfleiderer , O. Soltwedel

We have developed a radio-frequency resonant spin rotator to reverse the neutron polarization in a 9.5 cm x 9.5 cm pulsed cold neutron beam with high efficiency over a broad cold neutron energy range. The effect of the spin reversal by the…

Coherent spin resonance methods such as nuclear magnetic resonance (NMR) and electron spin resonance (ESR) spectroscopy have led to spectrally highly sensitive, non-invasive quantum imaging techniques with groundbreaking applications in…

Radiofrequency spin flippers (RFSF) are key elements of Neutron Resonance Spin Echo (NRSE) spectrometers, which allow performing controlled manipulations of the beam polarization. We report on the design and test of a new type of RFSF which…

Instrumentation and Detectors · Physics 2014-07-14 N. Martin , J. N. Wagner , M. Dogú , C. Fuchs , L. Kredler , P. Böni , W. Häussler

The setup, capabilities and operation parameters of the neutron reflectometer GINA, the recently installed "Grazing Incidence Neutron Apparatus" at the Budapest Neutron Centre, are introduced. GINA, a dance-floor-type, constant-energy,…

Instrumentation and Detectors · Physics 2015-03-04 L. Bottyán , D. G. Merkel , B. Nagy , J. Füzi , Sz. Sajti , L. Deák , A. V. Petrenko , G. Endrőczi , J. Major

We apply two sparse reconstruction techniques, the least absolute shrinkage and selection operator (LASSO) and the sparse exponential mode analysis (SEMA), to two-dimensional (2D) spectroscopy. The algorithms are first tested on model data,…

Signal Processing · Electrical Eng. & Systems 2020-07-01 Zhengjun Wang , Shiwen Lei , Khadga Jung Karki , Andreas Jakobsson , Tönu Pullerits

Spin noise spectroscopy is a promising technique for revealing the microscopic nature of spin dephasing processes in quantum dots. We compare the spin-noise in an ensemble of singly charged quantum dots calculated by two complementary…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Johannes Hackmann , Dmitry S. Smirnov , Mikhail M. Glazov , Frithjof B. Anders
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