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Showing 1 to 20 of 37 for “"saturation magnetization"”.

  1. Characterization of ferromagnetic saturation at 4.2K of selected bulk rare earth metals for compact high-field superconducting cyclotrons

    Norsworthy, Mark A. (Mark Andrew)Massachusetts Institute of Technology2010

    The saturation magnetization of the rare earth ferromagnetic metals gadolinium and holmium was investigated. Cylindrical samples were placed in a superconducting test magnet and induced magnetic field measured at various applied fields. Data was obtained with Hall sensors mounted at the tips of the …

    mit Repository record

  2. Selective Laser Melting of Finemet Soft Magnetic Material

    Wang, HaozhengVirginia Tech2023

    … alloys, resulting in low coercivity and high saturation magnetization by facilitating the formation of nanocrystals. An extremely high cooling rate is the foundational factor for controlling the microstructure. Selective Laser Melting (SLM) offers a layer thickness of 20-100 µm, naturally …

    vt Repository record

  3. In Situe Synthesis of Iron Oxide within Polyvinylamine nanoparticles

    Mohammadi, ZahraUniversity of Kansas2008

    Magnetic nanoparticles that display high saturation magnetization and high magnetic susceptibility with a size less than 200 nm are of great interest for medical applications. Investigations of magnetic nanoparticles have been increasing over the last decade. Magnetite nanoparticles are …

    ku Repository record

  4. The study of weak ferromagnetism by andreev reflection spin spectroscopy and development of bimorph electro-thermal actuators

    Thapa, Pushkal2011

    … spin polarization with other parameters such as saturation magnetization or the Curie temperature so that better spintronic materials can be identified and developed. We investigated how the spin polarization of itinerant ferromagnet MnSi changes as it undergoes magnetic phase transition from …

    wayne-thes Repository record

  5. Application Of Scanning Hall Probe Microscopy For High Throughput Characterization Of Combinatorial Magnetic Materials

    Shamsutdinov, Girfan2013

    … model we have then determined the corresponding saturation magnetizations of the alloys. The values of the saturation magnetization were found to be in good agreement with the known values for pure Fe, Co and Ni. The composition variations and crystal phase structure over the scan regions were …

    wayne-thes Repository record

  6. Polymer Stabilized Magnetite Nanoparticles and Poly(propylene oxide) Modified Styrene-Dimethacrylate Networks

    Harris, Linda AnnVirginia Tech2002

    Magnetic nanoparticles that display high saturation magnetization and high magnetic susceptibility are of great interest for medical applications. Nanomagnetite is particularly desirable because it displays strong ferrimagnetic behavior, and is less sensitive to oxidation than magnetic transition …

    vt Repository record

  7. Chemical vapor deposition of thin film materials for electronic and magnetic applications

    Li, NingUniversity of Alabama Libraries2011

    … Magnetic measurements reveal an increase in the saturation magnetization for the films with increasing growth temperature, which correlates well with the trend for improved epitaxial growth. Nickel ferrite films deposited on MgAl2O4 (100) at 800ºC exhibit saturation magnetization very close to …

    alabama Repository record

  8. Investigation of Spinel Ferrite Thin Films for Spintronics Applications

    Regmi, SudhirUniversity of Alabama Libraries2022

    … their extremely high specific resistance, high saturation magnetization, high Curie temperature, and exceptional flexibility in tailoring magnetic properties. In this dissertation, we attempt to address a most critical issue impeding the successful integration of spinel ferrites in ferrite-based …

    alabama Repository record

  9. Properties of off stoichiometric yttrium iron garnet

    Su, Tingyu(Mechanical engineer)Massachusetts Institute of Technology.Massachusetts Institute of Technology2020

    … the samples grown on (111) GGG substrates have saturation magnetization Ms~45 emu/cc, which is significantly smaller than standard YIG (~140 Ms~45/emu/cc). Furthermore, the Curie temperature of samples grown on (111) GGG is ~ 310K, in obvious contrast with standard YIG ~560K.

    mit Repository record

  10. High Frequency Study of Magnetic Nanostructures

    Srivastava, Abhishek

    … to estimate the growth rate from theory, from saturation magnetization and direct measurement from SEM image.</p> <p>In part two we focused on using the Vector Network Analyzer (VNA) to measure the Ferromagnetic Resonance (FMR))of various magnetic Nanowire arrays. We employed different …

    uno Repository record

  11. THE STUDY OF PERPENDICULARLY MAGNETIZED COFE/PD MULTILAYERS FOR DOMAIN WALL MOTION

    MENG ZHAOLIANG2016

    … with strong PMA. We find that high PMA, low saturation magnetization, narrow DW width and high spin polarization can induce low threshold current density for DW motion in CoFe/Pd superlattice-like multilayer films. Next, we show that DW motion can be driven by a low Jth with small bias field …

    nus Repository record

  12. Real-space magnetic imaging of the spinel MnV2O4

    Wolin, Brian AugustusUniversity of Illinois at Urbana-Champaign2017

    … structure in both samples. In one case, the magnetization of these stripes is estimated at Mz ~ 10^5 A/m, which is on the order of previous saturation magnetization measurements. The discovery of such large inhomogeneities necessitates revision of theoretical proposals and reinterpretation of …

    uiuc Repository record

  13. Synthesis and characterization of magnetic nanorings for neuronal stimulation

    Garcia, Francisco J.(Materials scientist) Massachusetts Institute of TechnologyMassachusetts Institute of Technology2017

    … used to determine magnetic properties, including saturation magnetization (Ms) and coercive field (He). Finally, calorimetric measurements were performed to calculate specific power losses (SLPs) of varying compositions of MNRs. We demonstrate that MNRs exhibit hysteretic power loss and can be …

    mit Repository record

  14. Microstructure-based FE Modeling and Measurements of Magnetic Properties of Polymer Matrix-Metal Composites

    Sun, WeizhenVirginia Tech2017

    … density, resistivity, core loss density, saturation magnetization value, fluidity, sintering temperature, and others. Compared to altering the nature of solid magnetic materials to reduce space constraints, modifying the magnetic composite is preferred. The most popular candidates for use …

    vt Repository record

  15. ΜΕΛΕΤΗ ΔΟΜΙΚΩΝ ΚΑΙ ΜΑΓΝΗΤΙΚΩΝ ΙΔΙΟΤΗΤΩΝ ΣΕ ΥΛΙΚΑ ΜΟΝΙΜΩΝ ΜΑΓΝΗΤΩΝ: ΟΙ ΥΠΟΚΑΤΕΣΤΗΜΕΝΟΙ ΜΕ ΖΝ ΕΞΑΓΩΝΙΚΟΙ ΦΕΡΙΤΕΣ ΜΝ2-W

    Λιτσαρδάκης, Γιώργος, Litsardakis, GeorgiosAristotle University Of Thessaloniki (AUTH)1989

    … OF HIGH TEMPERATURES. HIGH FIELD (UP TO 180 KOE) MAGNETIZATION MEASUREMENTS HAVE BEEN PERFORMED IN THE TEMPERATURE RANGE 4.2- 300K. A THOROUGH ANALYSIS OF THE MAGNETIZATION CURVES ACCORDING TO THE LAW OF APPROACH TO SATURATION PROVIDED THE VALUES OF SATURATION MAGNETIZATION (MO), ANISOTROPY FIELD …

    greece Repository record

  16. Characterization of Kenyan obsidian through analysis of magnetic properties

    Krueger, Elizabeth A., S.B. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2014

    … using a vibrating sample magnetometer to test saturation magnetization (Ms), remanence magnetization (Mr), and coercivity (Hc). Comparing the ratio of Mr/Ms with Hc allowed clear differentiation among three of the analyzed obsidian sources (Groups 14, 19, and 29 from Merrick and Brown 1984a). …

    mit Repository record

  17. Implications of Oxidation on the Colloidal Stability of Magnetite Nanoparticles and Cluster

    Rebodos, Robert Louie FermoVirginia Tech2010

    … observed that oxidation caused a decrease in the saturation magnetization and the anisotrophic barrier of magnetite resulting in less significant magnetic interactions between particles. Consequently, a decrease in the aggregation of magnetite clusters and a potential increase in stability are …

    vt Repository record

  18. Effects of composition and ausaging on microstructures and magnetic shape memory response of Fe-Ni-Co-Ti alloys

    Hayashi, Ryoji, 1968-Massachusetts Institute of Technology1998

    … the aging kinetics. Ausaging also increased the saturation magnetization (M) through a structural change from austenite to martensite, though the M, of martensite was relatively insensitive to the aging conditions. From these results, it can be expected that Fe-Ni-Co-Ti has the potential to show …

    mit Repository record

  19. Domain Wall Based Magnonics in Iron Garnet

    Gross, Miela J.Massachusetts Institute of Technology2025

    … essential. Key magnetic parameters, including saturation magnetization, perpendicular magnetic anisotropy, coercivity, and Gilbert damping, can be tailored through elemental substitution or strain engineering in thin films. Furthermore, relativistic domain wall velocities reported in yttrium …

    mit Repository record

  20. Fabrication and characterization of perpendicular magnetic anisotropy thin-film CoCrPt grown on a Ti underlayer

    Kane, Margaret MarieMassachusetts Institute of Technology2015

    … can be used to ensure the out-of-plane magnetization required for PMA functionalities. Ti, with a lattice constant of a = 2.95 Å can be used to encourage uniaxial c-axis growth in CoCrPt (lattice constant a ~/= 2.55 Å, dependent on exact composition). In this report, varying thicknesses …

    mit Repository record

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