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The Magnetic Resonance Fingerprinting (MRF) approach aims to estimate multiple MR or physiological parameters simultaneously with a single fast acquisition sequence. Most of the MRF studies proposed so far have used simple MR sequence types…

Neurons and Cognition · Quantitative Biology 2024-07-16 Antoine Barrier , Thomas Coudert , Aurélien Delphin , Benjamin Lemasson , Thomas Christen

Inspired by the recently proposed Magnetic Resonance Fingerprinting (MRF) technique, we develop a principled compressed sensing framework for quantitative MRI. The three key components are: a random pulse excitation sequence following the…

Information Theory · Computer Science 2014-06-09 Mike Davies , Gilles Puy , Pierre Vandergheynst , Yves Wiaux

Magnetic Resonance Fingerprinting (MRF) is a novel technique that simultaneously estimates multiple tissue-related parameters, such as the longitudinal relaxation time T1, the transverse relaxation time T2, off resonance frequency B0 and…

Image and Video Processing · Electrical Eng. & Systems 2022-09-20 Zhe Wang , Hongsheng Li , Qinwei Zhang , Jing Yuan , Xiaogang Wang

We report Ferromagnetic Resonance Force Microscopy (FMRFM) experiments on a justaposed continuous films of permalloy and cobalt. Our studies demonstrate the capability of FMRFM to perform local spectroscopy of different ferromagnetic…

Materials Science · Physics 2009-08-24 E. Nazaretski , Yu. Obukhov , I. Martin , D. V. Pelekhov , K. C. Cha , E. Akhadov , P. C. Hammel , R. Movshovich

Diffraction imaging of non-equilibrium dynamics at atomic resolution is becoming possible with X-ray free-electron lasers. However, there are unresolved problems with applying this method to objects that are confined in only one dimension.…

Strongly Correlated Electrons · Physics 2018-02-19 Kenneth R. Beyerlein

Spin wave modes confined in a ferromagnetic film by the spatially inhomogeneous magnetic field generated by a scanned micromagnetic tip of a ferromagnetic resonance force microscope (FMRFM) enable microscopic imaging of the internal fields…

The MRFM device is a powerful setup for manipulating single electron spin in resonance in a magnetic field. However, the real time observation of a resonating spin is still an issue because of the very low SNR of the output signal. This…

Quantum Physics · Physics 2007-05-23 Cyril Hory , Alfred O. Hero

Radio-frequency (RF) reflectometry is implemented in hybrid semiconductor-superconductor nanowire systems designed to probe Majorana zero modes. Two approaches are presented. In the first, hybrid nanowire-based devices are part of a…

Using resonant soft X-ray techniques we follow the magnetic behavior of a strained epitaxial film of CoCr2O4, a type-II multiferroic. The film is [110]-oriented, such that both the ferroelectric and ferromagnetic moments can coexist in…

Magnetic imaging based on ensembles of diamond nitrogen-vacancy quantum sensors has emerged as a useful technique for the spatial characterisation of magnetic materials and current distributions. However, demonstrations have so far been…

We present a numerical approach to simulate the Ferromagnetic Resonance (FMR) of micron and nanosized magnetic elements by a micromagnetic finite difference method. In addition to a static magnetic field a linearly polarized oscillating…

Computational Physics · Physics 2016-10-31 K. Wagner , S. Stienen , M. Farle

We applied a tabletop, ultrafast, high-harmonic generation (HHG) source to measure the element-specific ferromagnetic resonance (FMR) in ultra-thin magnetic alloys and multilayers on an opaque Si substrate. We demonstrate a continuous wave…

Materials Science · Physics 2024-04-25 Michael Tanksalvala , Anthony Kos , Jacob Wisser , Scott Diddams , Hans T. Nembach , Justin M. Shaw

By synchronizing a microwave waveform with the synchrotron x-ray pulses, we use the ferromagnetic resonance (FMR) of the Py (Ni81Fe19) layer in a Py/Cu/Cu75Mn25/Cu/Co multilayer to pump a pure spin current into the Cu75Mn25 spacer layer,…

We present a new setup to measure element-selective magnetization dynamics using the ALICE chamber (RSI \textbf{74}, 4048 (2003)) at the BESSY II synchrotron at the Helmholtz-Zentrum Berlin. A magnetic field pulse serves as excitation, and…

Mesoscale and Nanoscale Physics · Physics 2010-09-20 Stefan Buschhorn , Frank Brüssing , Radu Abrudan , Hartmut Zabel

This paper reports the development of a methodology combining microstrip ferromagnetic resonance (MS-FMR) and digital image correlation (DIC) in order to silmuteanously measure the voltage-induced strains and the magnetic resonance in…

Materials Science · Physics 2016-11-26 Fatih Zighem , Mohamed Belmeguenai , Damien Faurie , Halim Haddadi , Johan Moulin

We study a device composed of an optical interferometer integrated with a ferri-magnetic sphere resonator (FSR). Magneto-optic coupling can be employed in such a device to manipulate entanglement between optical pulses that are injected…

Quantum Physics · Physics 2022-02-02 Eyal Buks , Banoj Kumar Nayak

Magnomechanical devices, in which magnetic excitations couple to mechanical vibrations, have been discussed as efficient and broadband microwave signal transducers in the classical and quantum limit. We experimentally investigate the…

The method is based on four fundamental features. The total spin precession frequency in the vertical plane due to the electric and magnetic dipole moments in an imperfect ring in a vertical plane is measured. The position of the ring…

Accelerator Physics · Physics 2017-11-20 Yury Senichev , Alexander Aksentev , Andrey Ivanov , Eremey Valetov

The phenomenon of ferromagnetic resonance (FMR) is still being exploited for determining the magnetocrystalline anisotropy constants of magnetic materials. We show that one can also determine accurately the saturation magnetization of the…

Strongly Correlated Electrons · Physics 2019-01-07 P. Tomczak , H. Puszkarski

Magnetic resonance fingerprinting (MRF) is a technique for quantitative estimation of spin-relaxation parameters from magnetic-resonance data. Most current MRF approaches assume that only one tissue is present in each voxel, which neglects…