Relevant bibliographies by topics / Ferromagnetic resonance / Dissertations / Theses
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Dissertations / Theses on the topic 'Ferromagnetic resonance'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Marcham, Max Ken. "Phase-resolved ferromagnetic resonance studies of thin film ferromagnets." Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/3882.

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Precessional dynamics are exploited in the operation of high frequency magnetic devices such as magnetic disk drives, non reciprocal microwave devices and spin transfer oscillators. The trajectory of the precession and its damping are of crucial importance. This thesis presents the characterisation of a variety of magnetic thin film structures performed with a range of phase sensitive techniques. It is possible to obtain new insight by utilising the chemical and site specificity of X-ray Magnetic Circular Dichroism (XMCD) to isolate the precession in different chemical species or at distinct s
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2

Kim, Jongjoo. "Localized Ferromagnetic Resonance using Magnetic Resonance Force Microscopy." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1222191966.

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3

Lee, Inhee. "Nanoscale Ferromagnetic Resonance Imaging using Magnetic Resonance Force Microscopy." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1281111992.

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4

Inkoom, Godfred. "Ferromagnetic Resonance of LSMO Thin Film." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for fysikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-12933.

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The magnetic properties of a 15uc thick LSMO thin film on SrTiO3 (STO) substrate atT=150K was investigated using the technique of ferromagnetic resonance (FMR). The FMRmeasurement of the 15uc thick LSMO thin film at a frequency f = 9.75GHz and powerP = 0.6325mW as a function of the angle between the static magnetic field H, and theeasy direction of magnetization within the sample plane in the "in-plane" (IP) configuration displayed an FMR spectrum. This resonance spectrum shows unequal resonance field peaks. The unequal peaks in the resonance field may be attributed to the uniaxial anisotropy
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5

Bataiev, Yurri N. "Ferromagnetic Resonance Study of Spintronics Materials." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1236192587.

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6

Denysenkov, Vasyl. "Broadband Ferromagnetic Resonance Spectrometer : Instrument and Applications." Doctoral thesis, KTH, Microelectronics and Information Technology, IMIT, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3602.

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<p>This thesis compiles results of research in two mutuallydependent parts: 1) development of ferromagnetic resonance(FMR) spectrometer to study microwave properties offerromagnetic materials, and 2) characterization of new irongarnets: pulsed laser deposited Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub>and Bi<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub>films and Ce:Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub>single crystal.</p><p>First part describes a novel<i>Broadband</i>FMR<i>Spectrometer</i>designed to characterize thin ferromagneticfilms. The spectrometer uses two probeheads: one is the X-bandmicrow
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7

Adams, Daniel J. "Ferromagnetic Resonance Studies of Coupled Magnetic Systems." ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2121.

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The high-frequency properties of coupled magnetic systems have been investigated using vector network analyzer ferromagnetic resonance (VNA-FMR) spectroscopy. SAF structures consist of two ferromagnetic layers separated by a non-magnetic spacer, coupled through the indirect exchange interaction. The ferromagnetic layers of our samples were composed of FeCoB separated by a layer of Ru. The thickness of Ru was varied in the range of 8 to 18 Å among the samples studied. Antiferromagnetic coupling can be quickly identified by the major hysteresis loop (MHL). A new way of displaying FMR data for th
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8

Khazen, Khashayar. "Ferromagnetic resonance investigation of GaMnAs nanometric layers." Paris 6, 2008. https://tel.archives-ouvertes.fr/tel-00329331v2.

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Cette thèse est dédiée à l’étude des propriétés magnétiques des couches nanométriques de GaMnAs par Résonance ferromagnétique (RFM). Trois séries des échantillons sont étudiées afin d' élucider l’influence des contraintes, la concentration des trous et la concentration de manganèse, sur les propriétés magnétiques de GaMnAs. Dans la première série, les échantillons de Ga1-xMnxAs avec x=0. 07 déposés sur les substrats de GaAs (en compression) et GaInAs (en extension) sont étudiés. Les résultats des mesures de l’aimantation, la résistivité et l’effet de Hall sont présentés. Les axes faciles de l’
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9

Kennewell, Kimberly. "Surface and interface anisotropies measured using inductive magnetometry." University of Western Australia. School of Physics, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0243.

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In this thesis, an inductive ferromagnetic resonance (FMR) technique is developed to measure the magnetisation dynamics in thin films across a wide range of frequencies and fields. In particular, this project concentrates on measuring higher order exchange dominated modes to observe surface and interface effects in bilayer films. The experimental technique was first developed as a time domain technique, utilising a fast rise time (~50 ps) step pulse to disturb the equilibrium position of the magnetisation. The subsequent precessional damped decay was measured at different applied fields to obs
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10

Manuilov, Sergey. "Ferromagnetic resonance in films with growth induced anisotropy." Doctoral thesis, KTH, Integrerade komponenter och kretsar, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48248.

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This thesis discusses two different magnetic materials: epitaxial yttrium iron garnet (YIG) and heteromorphous CoFeB-SiO2 films. YIG films were grown by pulse laser deposition (PLD) techniques onto gadolinium gallium garnet (GGG) substrates of (111) and (001) crystal orientations. Using stoichiometric and overstoichiometric ablative targets, we developed two types of YIG submicron films. The films grown from overstoichiometric targets have magnetic properties slightly different from standard liquid phase epitaxy (LPE) YIGs. They also demonstrate good substrate matching and approximately 6% non
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11

Unwin, Marion Elizabeth. "Broadband ferromagnetic resonance studies of magnetic recording media." Thesis, Keele University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414759.

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FMR spectroscopy is widely used for the characterization of many types of magnetic materials for use in an extensive range of applications. It is a powerful tool for probing both the magnetic properties and physical aspects of a material. In recent years in particular, there has been some interest in its use to study commercial recording media. However, there are a number of limitations inherent in the conventional method of observing FMR that restricts its usefulness and popularity as a research technique. The high, single frequency operation of the spectrometer makes broadband, frequency dep
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12

White, Shane Paul White. "Study of Heavy Metal/Ferromagnetic Films Using Electrical Detection and Local Ferromagnetic Resonance Force Microscopy." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524172007784423.

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13

Fang, Dong. "Current-induced torque driven ferromagnetic resonance in magnetic microstructures." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/241302.

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This Dissertation explores the interaction between the magnetisation and an alternating current in a uniform ferromagnetic system. Diluted magnetic semiconductors (Ga,Mn)As and (Ga,Mn)(As,P) have been studied. Due to their strong spin-orbit coupling and well-understood band-structure, these materials are well-suited to this investigation. The combined effect of spinorbit coupling and exchange interaction permits the alternating current to induce an oscillating current-induced torque (CIT) on the magnetisation. In the frequency range close to the natural resonance frequency of the magnetic mome
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14

Körner, Michael. "Morphology-Induced Magnetic Phenomena Studied by Broadband Ferromagnetic Resonance." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-127005.

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In the present work, the influence of the morphology of thin ferromagnetic films on their static as well as dynamic magnetic properties was investigated by means of broadband ferromagnetic resonance (FMR). Using an ion beam erosion process the surface of the substrates was periodically modulated (ripples), where the modulation wavelength is determined by the ion energy. In this way a well-controllable roughness profile evolves ranging from a few ten up to several hundreds of nanometers in wavelength. The substrate’s surface profile in turn is repeated by films grown on top offering an easy and
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15

Peterman, Derrick W. "Control of chaos in thin films at ferromagnetic resonance /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu148793458997678.

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16

Wheeler, May Catherine. "Manipulation of fullerene C60 spintronic devices via ferromagnetic resonance." Thesis, University of Leeds, 2014. http://etheses.whiterose.ac.uk/8258/.

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C60 has been included in hybrid magneto-molecular devices as an active layer where the C60 is thermally sublimated under high vacuum and the metals are sputter deposited in-situ. Multilayer C60/Co samples were measured by x-ray reflectivity and transmission electron microscopy to show that there is little interdiffusion of layers suggesting C60 is robust to the deposition of metals by sputtering. We have observed 25% magnetoresistance through 60 nm of C60 at 10 K as well as 8% magnetoresistance at room temperature through 20 nm of C60. Unexpected asymmetric effects in external magnetic field w
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17

McCullian, Brendan Andrew. "Detection of Ferromagnetic Dynamics Using NV Centers in Diamond." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1585664864822124.

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18

Ma, Changlin. "Ferromagnetic resonance studies of DC magnetron sputtered CO-CR films." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26444.

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The X-band FMR has been employed to investigate the angular variation of resonance Fields of DC sputtered Co-Cr Films with different substrate temperatures. This angular variation has been Fitted with the classical uniaxial anisotropy crystal model and yields the values of 2K₁/M-4πM=-4∼-7 KOe, 4K₂ =-0.8∼0.8 KOe and g-factor = 2.3~2.8. The FMR measurments of the first anisotropy constant are quite different from the counterparts measured with VSM. This discrepancy is interpreted as a result of the formation of two ferromagnetic phases. With this simple model, the substrate temperature depende
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19

Sherratt, Sarah L. "Characterisation of iron oxide corrosion products using impulse ferromagnetic resonance." Thesis, Keele University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.518314.

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20

Burgei, Wesley Alan. "Ferromagnetic Resonance Study of Square-Array Antidot Permalloy Thin Films." Miami University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=miami1059192138.

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21

Du, Chunhui. "Probing Spin Dynamics and Transport using Ferromagnetic Resonance based Techniques." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1437066082.

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22

O'Dell, Ryan Andrew. "Resonant Ferromagnetic Absorption and Magnetic Characterization of Spintronic Materials." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1533043360679487.

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23

Bhat, Vinayak S. "A Study of Periodic and Aperiodic Ferromagnetic Antidot Lattices." UKnowledge, 2014. http://uknowledge.uky.edu/physastron_etds/25.

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This thesis reports our study of the effect of domain wall pinning by ferromagnetic (FM) metamaterials [1] in the form of periodic antidot lattices (ADL) on spin wave spectra in the reversible regime. This study was then extended to artificial quasicrystals in the form of Penrose P2 tilings (P2T). Our DC magnetization study of these metamaterials showed reproducible and temperature dependent knee anomalies in the hysteretic regime that are due to the isolated switching of the FM segments. Our dumbbell model analysis [2] of simulated magnetization maps indicates that FM switching in P2T is nons
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24

Braybrook, Julian Hugh. "Effects of paramagnetic and ferromagnetic particles on magnetic resonance (MR) imaging." Thesis, University of Cambridge, 1989. https://www.repository.cam.ac.uk/handle/1810/250949.

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25

Ofstad, Johannes. "Ferromagnetic Resonance Spectroscopy Studies of Permalloy/Copper/Chromium/Copper thin films." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for fysikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-24417.

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A theroretical and experimental study of 10Py/10Cu, 10Py/10Cu/xCr/10Cu (with x=4,7, 10,13 nm) thin films has been performed. The thin films were fabricated by the sputter deposition technique at NTNU Nanolab and afterwards a FMR-experiment were performed on them at the temperatures 180K, 210K, 240K, 280K, 330K and 360K. The anisotropy field, exchange bias and offset field were extracted and analysed. The results revealed vastly higher magnitude of anisotropy field and exchange bias for the 4 Cr film, compared to the other samples. Under 300K, the anisotropy field of 4Cr is ~60 Oe which is abou
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26

Hussain, A. A. "Spin wave and ferromagnetic resonance studies on single crystal nickel films." Thesis, University of York, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354383.

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27

Gueye, Mouhamadou. "Magnetic thin films on flexible substrates : magnetomechanical study by ferromagnetic resonance." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCD007/document.

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Les films minces déposés sur des substrats flexibles ont été intensivement étudiés ces dernières années en raison de leur nombreuses applications en électronique flexible. Depuis peu, l'électronique flexible est étendu aux matériaux magnétiques conduisant ainsi au domaine émergeant de la magnéto-électronique flexible actuellement à l'avant garde des sujets de recherche de la spintronique. Ce travail de thèse est dédié à l'étude des propriétés magnéto-mécaniques de films minces magnétiques (Ni, NiFe, Co2FeAl, CoFeB, FeCuNbSi) sur des substrats flexibles. Les analyses structurales ont montré que
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28

Zhang, Zhenyong. "Ferromagnetic resonance study in exchange coupled magnetic/"non-magnetic" multilayer structures /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487856076413539.

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29

Soares, Gabriel 1988. "Competição entre anisotropias perpendiculares em bicamadas de CoCrPt/Ni resolvida por ressonância ferromagnética." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/276925.

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Orientadora: Fanny Béron<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-28T23:44:04Z (GMT). No. of bitstreams: 1 Soares_Gabriel_M.pdf: 11563028 bytes, checksum: 679e40dbf51a0c4198966c4f0eee8e20 (MD5) Previous issue date: 2015<br>Resumo: Desde a descoberta dos filmes finos magnéticos com anisotropia perpendicular, ou PMAs (Perpendicular Magentic Anisotropy, em inglês), se tornou possível aumentar drasticamente a densidade de dados em discos rígidos. Uma maneira de continuar a incrementar a densidade final
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30

Adur, Rohan. "Magnetic Coupling and Relaxation at Interfaces Measured by Ferromagnetic Resonance Spectroscopy and Force Microscopy." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1406120604.

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31

Lawson, Graham Richard. "Swept frequency absorption in particulate magnetic materials." Thesis, Manchester Metropolitan University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296486.

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32

Hiebert, Wayne Kevin. "Ferromagnetic resonance in a permalloy microstructure using time resolved scanning Kerr effect microscopy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0006/MQ28942.pdf.

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33

Rodan, Steven. "Nuclear magnetic resonance and specific heat studies of half-metallic ferromagnetic Heusler compounds." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-198412.

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Half-metallic ferromagnets (HMFs), with fully spin-polarized conduction electrons, are prime candidates for optimizing spintronic devices. Many Heusler compounds (a class of ternary and quaternary intermetallics) are predicted to be HMFs, in particular Co$_{2}YZ$ (where $Y$ is usually another transition metal, and $Z$ is an s-p element). Crystal structure is controlled by thermodynamics to a large extent. Ideally, one should be able to control and optimize properties which are of interest by appropriately "tuning" the structure (e.g. annealing), but first one must understand the structure and
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34

Ogrin, Feoder. "Ferromagnetic resonance studies of cobalt films and cobalt based multilayers produced by MOCVD." Thesis, Keele University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362165.

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35

Liutyi, Taras Volodymyrovych, Тарас Володимирович Лютий, Тарас Владимирович Лютый, and O. M. Hryshko. "Magnetic and Mechanical Resonance of a Single Ferromagnetic Nanoparticle in a Viscous Fluid." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/64155.

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Resonance is a widely spread phenomenon in our life. The mathematical apparatus for this phenomenon was developed absolutely, and a lot of examples, both desirable and undesirable were studied in detail. Thus, in particular, the resonance behavior of the nanoparticle magnetic moment driven by an external alternating field was scrutinized in. Here the nanoparticle was considered to be embedded into a solid matrix.
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36

Karube, Kosuke. "Ferromagnetic critical behavior and critical universality in itinerant-electron metamagnet UCoAl." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199086.

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37

Hattori, Taisuke. "Spin-Triplet Superconductivity Induced by Ferromagnetic Fluctuations in UCoGe." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188471.

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38

Johansson, August. "Interlayer exchange coupling in Co/Pd-NiFe films studied by Vector Network Analyser Ferromagnetic Resonance." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/interlayer-exchange-coupling-in-copdnife-films-studied-by-vector-network-analyser-ferromagnetic-resonance(cdb5170e-aa10-43ef-86c7-f61cf8a187f9).html.

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A greater understanding of precessional dynamics in magnetic systems is central to several emerging technologies. This thesis presents the design, construction and development of a Vector Network Analyser based Ferromagnetic Resonance measurement instrument (VNA-FMR), and its application in characterising dynamic material properties in hybrid anisotropy [CoPd]8-NiFe films, produced by remote plasma sputtering. Potential applications for hybrid films include Spin Torque Oscillators (STOs) or Vortex Oscillators (VO) for use as microwave emitters in, for example in Microwave Assisted Magnetic Rec
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39

Trindade, Gonçalves Francisco José. "Engineering of demagnetisation fields in exchange biased antidots studied using ferromagnetic resonance and Lorentz microscopy." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/6875/.

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Nanostructured ferromagnetic materials have gained considerable attention recently for use in novel devices in the areas of data storage, microwave signal processing and propagation of electromagnetic waves. Structural modifications allow a control over the internal magnetic properties of the system down to the nanoscale. Lateral confinement gives rise to a distribution of demagnetisation fields in the plane of the thin film which can create interesting effects on static and dynamic magnetic properties. In the context of this dissertation, nanostructuring is used as a means to engineer the sta
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40

Back, Markus. "Out-of-plane Ferromagnetic Resonance (FMR) measurements on magnetic nanoparticle dispersions for biomedical sensor applications." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-410179.

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In this master work, we investigated the feasibility of a magnetic resonance measurement technique using magnetic nanoparticle dispersions in both liquid and solid form. The implementation is realised as a coplanar waveguide operating in the frequency range of 0.5 - 20 GHz and an electromagnet producing a static magnetic field of strength up to 1.2 T. The Gilbert magnetic damping factor is determined for polymer composites of magnetic nanoparticles and the gyromagnetic ratio is determined for both nanoparticle dispersions in liquid form and polymer composites.
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41

Wei, Yajun. "Ferromagnetic Resonance as a Probe of Magnetization Dynamics : A Study of FeCo Thin Films and Trilayers." Doctoral thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-247238.

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The high frequency dynamic magnetic responses of FeCo thin films and structures have been investigated mainly using ferromagnetic resonance (FMR) technique. The FMR resonance condition and linewidth are first derived from the dynamic Landau- Lifshitz-Gilbert equation, followed by a study of the conversion between FMR field and frequency linewidths. It is found that the linewidth conversion relation based on the derivative of resonance condition is only valid for samples with negligible extrinsic linewidth contribution. The dynamic magnetic properties obtained by using FMR measurements of FeCo
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42

Elster, Lars. "Magnetic resonance in superconducting junctions." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY042/document.

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Dans cette thèse, on analyse la possibilité de changer un courant de charge dans des jonctions supraconductrices par une manipulation des propriétés de spin en utilisant la résonance magnétique. On considère deux jonctions différentes: Premièrement, une jonction Josephson non-conventionnelle entre un supraconducteur conventionel de type s et un supraconducteur non-conventionel de type px. Deuxièmement, une jonction entre un demi-métal et un supraconducteur conventionel. La jonction spx contient deux états liés d'Andreev qui sont 2pi-periodiques. Ils donnent lieu à une aimentation spontanée à l
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43

Wittmann, Angela Dorothea Anshi. "Spin currents in organic semiconductors." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/290148.

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Organic semiconductors have recently been found to have a comparably large spin diffusion time and length. This makes them ideal candidates for spintronic devices. However, spin injection, transport and detection properties in organic materials have yet to be fully understood. This work studies spin injection from ferromagnets into organic semiconductors via spin pumping. Furthermore, work towards thermal spin injection, and detection is presented and discussed. The first part of this thesis comprises the spin pumping experiments. Measuring linewidth broadening of the microwave absorption at f
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44

Kaster, Brian C. "Magnetic Properties of Co1-xFexS2." Miami University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=miami1311874514.

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45

Khanal, Shankar. "Study of Static and Dynamic Properties of Magnetic Nanostructures." ScholarWorks@UNO, 2017. http://scholarworks.uno.edu/td/2382.

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Magnetic materials are one of the most interesting and promising class of materials for technological applications [1]. Among them, patterned ferromagnetic systems have an important role especially in the prospect of high density data storage [2], domain wall logic devices [3] and magnetic memory [4, 5]. Coupled systems of ferromagnetic and antiferromagnetic materials have been implemented to design sensors such as giant magnetoresistance (GMR) [6-8] and tunnel magnetoresistance (TMR) [9, 10]. Ferromagnetic nanoparticles have been used for the drug targeting, cancer therapy, MRI and many more
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46

Manago, Masahiro. "Enhancement of Spin-Triplet Superconductivity by Pressure-Induced Critical Ferromagnetic Fluctuations in UCoGe." Kyoto University, 2019. http://hdl.handle.net/2433/242592.

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47

Markó, Daniel. "Magnetostatics and Dynamics of Ion Irradiated NiFe/Ta Multilayer Films Studied by Vector Network Analyzer Ferromagnetic Resonance." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-64289.

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In the present work, the implications of ion irradiation on the magnetostatic and dynamic properties of soft magnetic Py/Ta (Py = Permalloy: Ni80Fe20) single and multilayer films have been investigated with the main objective of finding a way to determine their saturation magnetization. Both polar magneto-optical Kerr effect (MOKE) and vector network analyzer ferromagnetic resonance (VNA-FMR) measurements have proven to be suitable methods to determine µ0MS, circumventing the problem of the unknown effective magnetic volume that causes conventional techniques such as SQUID or VSM to fail. Prov
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48

Ruane, William Terrence. "Controllable Spin Wave Generation with Spatially Dependent Magnetic Fields and Their Detection Using Ferromagnetic Resonance Force Microscopy." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524171463673634.

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49

Bechtel, Kyle A. "MAGNETIC RESONANCE IN THE PROXIMITY OF AN INSTABILITY: PERPENDICULAR RESONANCE IN PERMALLOY NEAR THE CRITICAL FIELD." Oxford, Ohio : Miami University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1250281122.

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50

Ciuciulkaite, Agne. "Micromagnetic simulations for the investigation of magnetic vortex array dynamics." Thesis, Uppsala universitet, Materialfysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-280767.

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In this work the dynamics of permalloy circular magnetic islands of 225 nm radius and 10 nm thickness arranged into square lattices was investigated employing micromagnetic simulations.The simulations of the vortex magnetization loops and the ferromagnetic resonance (FMR) spectra were carried out using a free micromagnetics simulation software Mumax3. The obtained data was analyzed using Matlab. The simulations were carried out on a single vortex island as well as on two different lattices. The first lattice is comprised of interacting islands, while the second lattice - of non-interacting isl
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