Search Results - "Dan Dahlberg, E"
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Determining the AC susceptibility of thin metal films using the anisotropic magnetoresistance
Published in Journal of magnetism and magnetic materials (01-04-2021)“…•AC Susceptibility of thin films using the anisotropic magnetoresistance.•Anisotropic magnetoresistance for thefrequency dependent AC…”
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Magneto-Impedance measurements in thin films of the Spin-Glass Cu100-xMnxAu13.5 (x = 6.75 and 13.5) alloys
Published in Journal of magnetism and magnetic materials (01-01-2022)“…•Magneto-impedance was measured in samples of Cu100-xMnxAu13.5 (x = 6.75 and 13.5).•Non-vanishing values for the magneto-impedance data were obtained for all…”
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3
Tunable random telegraph noise in individual square permalloy dots
Published in Applied physics letters (23-06-2014)“…Magnetization fluctuations caused by thermal energies are poorly understood, yet they represent a fundamental limit for many magnetic technologies. Here,…”
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GMI in the reentrant spin-glass Fe90Zr10 alloy: Investigation of the spin dynamics in the MHz frequency regime
Published in Applied physics letters (05-09-2016)“…Giant magnetoimpedance (GMI) in the reentrant spin-glass (SG) phase of ferromagnetic Fe90Zr10 is reported. The temperature (T) dependence of the GMI allows the…”
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The Physics Force of the College of Science and Engineering at the University of Minnesota
Published in Journal of magnetism and magnetic materials (15-08-2017)“…•First invited article to launch the new section in JMMM on outreach.•Description of outreach program at the University of Minnesota.•Demonstration program to…”
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Effect of Demagnetization Technique on Remanence Measurements in Metallic Ferromagnets
Published in IEEE transactions on magnetics (01-04-2020)“…Parametric plots of the remagnetization versus demagnetization remanences were found for four metallic ferromagnets-nickel wire, two types of AlNiCo, and…”
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Corrections to "Effect of Magnetic Interactions on Magnetic Remanence in a Fine Particle System" [Aug 22 doi: 10.1109/tmag.2022.3177807]
Published in IEEE transactions on magnetics (01-01-2023)“…In the above article <xref ref-type="bibr" rid="ref1">[1] , the following sentence appears in the next-to-last paragraph of Section IV-C:…”
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Effect of Magnetic Interactions on Magnetic Remanence in a Fine Particle System
Published in IEEE transactions on magnetics (01-08-2022)“…The magnetic field-dependent remanent magnetization and demagnetization of magnetite nanoparticles dispersed in a frozen isoparaffin oil have been measured as…”
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Emergent 1/f Noise in Ensembles of Random Telegraph Noise Oscillators
Published in Physical review letters (01-09-2017)“…The emergence of 1/f noise from an aggregate of 1/f^{2} noise signals in magnetic nanodots undergoing random telegraph oscillations in their magnetization is…”
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Noise in Mesoscale Magnetic Dots From Random Telegraph Noise to 1/ Noise
Published in IEEE transactions on magnetics (01-02-2019)“…The noise in permalloy magnetic square shaped dots and chains of dots has been investigated. With the application of a magnetic field to control the energy…”
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Absence of magnetic state dependent low-frequency noise in spin-valve systems
Published in Physical review. B, Condensed matter and materials physics (09-07-2013)“…The low-frequency noise in magnetic tunnel junctions and giant magnetoresistance devices in various magnetic states has been investigated. The noise…”
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Measurements of configurational anisotropy in isolated sub-micron square permalloy dots
Published in Applied physics letters (22-07-2013)“…We measure a shape dependent anisotropy energy in isolated square permalloy dots with characteristic dimensions as small as 200 nm. The magnetization behavior…”
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Contribution of low-temperature degrees of freedom to the anisotropy in Co/CoO exchange coupled bilayers
Published in Journal of magnetism and magnetic materials (01-02-2005)“…Measurements of the transverse magnetic AC-susceptibility χ(T) of exchange coupled polycrystalline Co/CoO bilayers have been made via the anisotropic…”
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Journal Article Conference Proceeding -
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In situ manufacture of magnetic tunnel junctions by a direct-write process
Published in Applied physics letters (02-06-2014)“…In situ construction of Co/SiO2/Co magnetic tunnel junctions using direct-write electron-beam-induced deposition is described. Proof-of-concept devices were…”
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An investigation of the magnetic state dependent low frequency noise in magnetic tunnel junctions
Published in Applied physics letters (10-08-2009)“…The low frequency noise in magnetic tunnel junctions was studied as a function of applied magnetic field. In magnetic states where the magnetization is…”
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Exchange bias in macroporous Co/CoO
Published in Journal of magnetism and magnetic materials (01-05-2001)“…The magnetic properties of new magnetic material, macroporous cobalt have been investigated. The cobalt samples studied have FCC close packed three-dimensional…”
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Use of the anisotropic magnetoresistance to measure exchange anisotropy in Co/CoO bilayers
Published in Applied physics letters (16-12-1996)“…Direct ferromagnetic antiferromagnetic exchange biasing energy is determined by small reversible rotations of the magnetization away from the unidirectional…”
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Resource Letter STMN-1: Spin transport in magnetic nanostructures
Published in American journal of physics (01-10-2007)“…This Resource Letter provides a guide to the literature in the still rapidly developing area of spin-dependent transport phenomena, which forms the basis for…”
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Deformation of Water by a Magnetic Field
Published in The Physics teacher (01-03-2011)“…After the discovery that superconducting magnets could levitate diamagnetic objects, researchers became interested in measuring the repulsion of diamagnetic…”
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Magnetic force microscopy studies of bit erasure in particulate magnetic recording media
Published in Journal of magnetism and magnetic materials (01-05-2001)“…Magnetic force microscopy (MFM) with in situ magnetic fields has been used to study the erasure of bit transitions in high-density particulate magnetic…”
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