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Tractography algorithms are used extensively to delineate white matter structures, by operating on the voxel-wise information generated through the application of diffusion tensor imaging (DTI) or other models to diffusion weighted (DW)…

Quantitative Methods · Quantitative Biology 2024-03-05 Richard G. Carson , Alexander Leemans

Polarized Neutron Reflectometry and magnetometry measurements have been used to obtain a comprehensive picture of the magnetic structure of a series of La{2/3}Sr{1/3}MnO{3}/Pr{2/3}Ca{1/3}MnO{3} (LSMO/PCMO) superlattices, with varying…

Strongly Correlated Electrons · Physics 2009-11-13 D. Niebieskikwiat , L. E. Hueso , J. A. Borchers , N. D. Mathur , M. B. Salamon

Superconducting resonators are now found in a broad range of applications that require high-fidelity measurement of low-energy signals. A common feature across almost all of these applications is the need for increased numbers of resonators…

Superconductivity · Physics 2022-04-01 J. Li , P. S. Barry , Z. Pan , C. Albert , T. Cecil , C. L. Chang , K. Dibert , M. Lisovenko , V. Yefremenko

In this work we introduce a new method of a ferromagnetic resonance (FMR) detection from thin, nm-size, films. Our setup is based on the commercial piezo-cantilever, used for atomic force microscopy. It has an option to rotate the sample in…

Strongly Correlated Electrons · Physics 2016-08-24 Alexey Alfonsov , Eiji Ohmichi , Pavel Leksin , Ahmad Omar , Hailong Wang , Sabine Wurmehl , Fengyuan Yang , Hitoshi Ohta

Magnetic vortex gyration in a 500 nm wide, 50 nm thick Permalloy square platelet was investigated using time-resolved scanning transmission x-ray microscopy and micromagnetic simulations. The response of the vortex core on an in-plane…

Joint modeling of diffusion and relaxation has seen growing interest due to its potential to provide complementary information about tissue microstructure. For brain white matter, we designed an optimal diffusion-relaxometry MRI protocol…

Magnetic Resonance Imaging (MRI) is a noninvasive imaging technique that provides exquisite soft-tissue contrast without using ionizing radiation. The clinical application of MRI may be limited by long data acquisition times; therefore, MR…

Image and Video Processing · Electrical Eng. & Systems 2020-07-10 Shen Zhao , Lee C. Potter , Kiryung Lee , Rizwan Ahmad

Magnetic nanoparticles of gamma-Fe2O3 coated by organic molecules and suspended in liquid and solid matrices, as well as a non-diluted magnetic fluid have been studied by electron magnetic resonance (EMR) at 77-380 K. Slightly asymmetric…

Materials Science · Physics 2009-11-11 N. Noginova , F. Chen , T. Weaver , E. P. Giannelis , A. B. Bourlinos , V. A. Atsarkin

A quasi-one dimensional antiferromagnet with a strong reduction of the ordered spin component, BaCu2Si2O7, is studied by the magnetic resonance technique in a wide field and frequency range. Besides of conventional spin-flop transition at…

Strongly Correlated Electrons · Physics 2009-11-11 V. N. Glazkov , A. I. Smirnov , A. Revcolevschi , G. Dhalenne

The ferromagnetic resonance spectrum of a normally magnetized YIG disk, with thickness of 4.75$\mu$m and radius of 80$\mu$m, is measured at room temperature both by magnetic resonance force microscopy and by standard detection of the…

Materials Science · Physics 2007-05-23 V. Charbois , V. V. Naletov , J. Ben Youssef , O. Klein

Voltage-induced ferromagnetic resonance (V-FMR) in magnetic tunnel junctions (MTJs) with a W buffer is investigated. Perpendicular magnetic anisotropy (PMA) energy is controlled by both thickness of a CoFeB free layer deposited directly on…

The frequency dependence of the interlayer conductivity of a layered Fermi liquid in a magnetic field which is tilted away from the normal to the layers is considered. For both quasi-one- and quasi-two-dimensional systems resonances occur…

Strongly Correlated Electrons · Physics 2009-10-31 Ross H. McKenzie , Perez Moses

Disorder-induced spectral correlations of mesoscopic quantum systems in the non-diffusive regime and their effect on the magnetic susceptibility are studied. We perform impurity averaging for non-translational invariant systems by combining…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Edward McCann , Klaus Richter

Magnetic skyrmions are nanoscale spin structures recently discovered at room temperature (RT) in multilayer films. Employing their novel topological properties towards exciting technological prospects requires a mechanistic understanding of…

Mesoscale and Nanoscale Physics · Physics 2018-02-13 Bhartendu Satywali , Fusheng Ma , Shikun He , M. Raju , Volodymyr P. Kravchuk , Markus Garst , Anjan Soumyanarayanan , C. Panagopoulos

We analyze the problem of microwave absorption by the Heisenberg-Ising magnet in terms of shifted moments of the imaginary part of the dynamical susceptibility. When both, the Zeeman field and the wave vector of the incident microwave, are…

Strongly Correlated Electrons · Physics 2011-07-04 Michael Brockmann , Frank Göhmann , Michael Karbach , Andreas Klümper , Alexander Weiße

Recent progress in the application of color centers to nanoscale spin sensing makes the combined use of noise spectroscopy and scanning probe imaging an attractive route for the characterization of arbitrary material systems. Unfortunately,…

In this study we investigate magnetic properties, surface morphology and crystal structure in iron nanoclusters electrodeposited on lightly-doped (100) n-type silicon substrates. Our goal is to investigate the spin injection and detection…

Materials Science · Physics 2015-12-09 J. F. Felix , L. C. Figueiredo , J. B. S. Mendes , P. C. Morais , C. I. L. de Araujo

We analyze the effects of lateral device size and magnetic material parameters on the ferromagnetic resonance (FMR) response. Results presented are directly relevant to widely used FMR experimental techniques for extracting magnetic…

Mesoscale and Nanoscale Physics · Physics 2013-01-01 Kwaku Eason , Maria Sabino , Michael Tran , Yun Fook Liew

As exposure to electromagnetic waves becomes increasingly widespread, it is important to quantify how incident fields couple into biological tissue and where absorbed energy is deposited. This work presents an analytical, physics based…

Biological Physics · Physics 2026-04-09 Hongyun Wang , Shannon E. Foley , Hong Zhou

The change of a material's electrical resistance (R) in response to an external magnetic field (B) provides subtle information for the characterization of its electronic properties and has found applications in sensor and storage related…

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