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相关论文: The longitudinal neutron resonant spin echo spectr…

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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…

仪器与探测器 · 物理学 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…

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…

强关联电子 · 物理学 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…

强关联电子 · 物理学 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…

仪器与探测器 · 物理学 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…

仪器与探测器 · 物理学 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…

仪器与探测器 · 物理学 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…

仪器与探测器 · 物理学 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)…

强关联电子 · 物理学 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…

仪器与探测器 · 物理学 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…

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…

仪器与探测器 · 物理学 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…

强关联电子 · 物理学 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…

仪器与探测器 · 物理学 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,…

仪器与探测器 · 物理学 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,…

信号处理 · 电气工程与系统科学 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…

介观与纳米尺度物理 · 物理学 2015-06-19 Johannes Hackmann , Dmitry S. Smirnov , Mikhail M. Glazov , Frithjof B. Anders
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