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# IEEE Transactions on Magnetics

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Displaying Results 1 - 25 of 31
• ### [Front cover]

Publication Year: 2013, Page(s): C1
| PDF (258 KB)
• ### IEEE Transactions on Magnetics publication information

Publication Year: 2013, Page(s): C2
| PDF (196 KB)

Publication Year: 2013, Page(s):5593 - 5594
| PDF (176 KB)
• ### Structure and Magnetism of MnGa Ultra-Thin Films on GaAs(111)B

Publication Year: 2013, Page(s):5595 - 5598
Cited by:  Papers (3)
| | PDF (560 KB) | HTML

MnGa alloys with compositions in the range of 52 to 60 at. % Mn were grown by molecular beam epitaxy (MBE) on GaAs(111)B substrates. High quality epilayers were obtained at growth temperatures between 25 and 250 °C. Epilayers are stabilized by post-growth annealing at 400 °C for 30 min. In situ reflection high energy electron diffraction (RHEED) and X-ray photoe... View full abstract»

• ### Optimization of Temperature Coefficient of Remanence and Magnetic Properties of Sintered $hbox{Sm}_{0.7}hbox{Dy}_{0.1}hbox{Gd}_{0.2}(hbox{Co}_{rm bal}hbox{Fe}_{0.2}hbox{Cu}_{0.08}hbox{Zr}_{0.025})_{7.2}$ Magnets Prepared by Strip-Casting Technique

Publication Year: 2013, Page(s):5599 - 5602
Cited by:  Papers (3)
| | PDF (2344 KB) | HTML

Rapidly solidified strips were used to produce Sm0.7Dy0.1Gd0.2(CobalFe0.2Cu0.08Zr0.025)7.2 magnets with better temperature stability of remanence. The phase and microstructure of strips and ingots were studied by scanning electron microscope (SEM) and X-ray diffraction (XRD). The microstructure of strips showed dendritic ... View full abstract»

• ### Co–Pt–Cr–CoSi–CoO Sintered Target for Low Ar-gas-pressure Deposition of ${hbox{CoPtCr-SiO}}_{2}$ Granular Film with Stoichiometric $hbox{SiO}_{2}$ Phase

Publication Year: 2013, Page(s):5603 - 5609
Cited by:  Papers (1)
| | PDF (1402 KB) | HTML

A new type of composite target is proposed for low Ar-gas-pressure (PAr) deposition of CoPtCr-SiO2 granular perpendicular magnetic recording media. The proposed target is a Co-Pt-Cr-CoSi-enriched CoO sintered target, consisting of CoSi and CoO powders instead of SiO2 powder. Systematic analysis of film composition, microstructure, and magnetic properties of the gra... View full abstract»

• ### Magnetic Dimensionality of Metal Formate $M[(H_2O)_2 (HCOO)_2]$ Compounds ($M={}$ Co(II), Cu(II))

Publication Year: 2013, Page(s):5610 - 5615
Cited by:  Papers (2)
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The magnetic properties of two metal formate systems with formula M[(H2O)2(HCOO)2], which are isostructural, are described (M=Co,Cu). These compounds contain two different crystallographic metal centers (M2+), in octahedral coordination, which are connected through (HCOO) bridges, leading to the formation of two types of infinite chains: M(1)-HCOO-M(2) a... View full abstract»

• ### Cross-track pulse shape and nonlinear loss as a function of frequency and side track erasure in perpendicular magnetic recording systems

Publication Year: 2013, Page(s):5616 - 5619
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Many previous publications have shown signal amplitude of magnetic recording systems decrease as cross-track run-out or linear density increases. This study expands on this work by characterizing cross-track transition width (T50) and nonlinear partial erasure (NLPE) changes with linear density, read-back location, and track edge erasure. Both T50 and NLPE data shown in this paper were calculated ... View full abstract»

• ### Reliability Analysis and Comparison of Implication and Reprogrammable Logic Gates in Magnetic Tunnel Junction Logic Circuits

Publication Year: 2013, Page(s):5620 - 5628
Cited by:  Papers (13)
| | PDF (1029 KB) | HTML

Non-volatile logic is a promising solution to overcome the leakage power issue which has become an important obstacle to scaling of CMOS technology. Magnetic tunnel junction (MTJ)-based logic has a great potential, because of the non-volatility, unlimited endurance, CMOS compatibility, and fast switching speed of the MTJ devices. Recently, by direct communication between spin-transfer-torque-opera... View full abstract»

• ### Characterization and Implementation Methods of Multilayer Inductors with Ni-Zn Ferrite and Carbonyl SF Powder Iron on Ceramic Substrates for RF Amplifers

Publication Year: 2013, Page(s):5629 - 5634
| | PDF (1961 KB) | HTML

Characterization and implementation of multilayer inductors constructed with Ni-Zn ferrite and Carbonyl SF powder iron on ceramic substrates for radio frequency (RF) power amplifier applications are presented for the first time. The multilayer inductor has a base material with high permittivity and low loss ceramic substrate, which has spiral inductor configuration and overlay magnetic substrate t... View full abstract»

• ### Magnetic polarization of the tunneling current

Publication Year: 2013, Page(s):5635 - 5638
| | PDF (717 KB) | HTML

In this work, we theoretically study the spin-dependent transport in a magnetic tunnel junction (MTJ). Using a simple model and ballistic transport, the magnetic polarization of the tunneling current on this system is studied by focusing on the tunneling of s and d electrons. We investigate the tunneling of these electrons through potential barriers, which represents the insulating layer between t... View full abstract»

• ### Influence of Wire-Connecting With Ni Electro-Plating on GMI Output Stability of Co-Rich Amorphous Microwires

Publication Year: 2013, Page(s):5639 - 5644
Cited by:  Papers (2)
| | PDF (1067 KB) | HTML

We present systematic studies on the effect of Ni electro-plated wire-connecting technique on giant magneto-impedance (GMI) output stability of melt-extracted amorphous CoFeSiB microwires for potential sensor applications. The electro-plated microstructure was observed by scanning electron microscopy (SEM) and the GMI output stability was characterized by a precision impedance analyzer and a magne... View full abstract»

• ### A design tool for magnetic resonance imaging gradient coils using DUCAS with weighted nodes and initial current potentials

Publication Year: 2013, Page(s):5645 - 5655
Cited by:  Papers (4)
| | PDF (3486 KB) | HTML

DUCAS is a computer code using an arbitrary magnetic field distribution as input and producing a sheet current distribution as output. The code was improved for application to the magnetic resonance imaging (MRI) gradient coil (GC) design. DUCAS computes the current potential (CP) distribution, and the coil conductors are placed along the contours, which are current flow lines. An improved algorit... View full abstract»

• ### Analytical Description of Two-Dimensional Magnetic Arrays Suitable for Biomedical Applications

Publication Year: 2013, Page(s):5656 - 5663
Cited by:  Papers (2)
| | PDF (1819 KB) | HTML

Two-dimensional magnetic arrays are used to generate a magnetic field that pervades a layer of volume above the array's surface, often creating regions of high magnetic flux density gradients. We have recently employed an array with equally oriented magnetic moments of individual elements in several biomedical experiments. We have chosen this type of array because of the slowly decreasing magnetic... View full abstract»

• ### Design and Demonstration of a Test-Rig for Static Performance-Studies of Permanent Magnet Couplings

Publication Year: 2013, Page(s):5664 - 5670
Cited by:  Papers (3)
| | PDF (1173 KB) | HTML

The design and construction of an easy-to-use test-rig for permanent magnet couplings is presented. Static torque of permanent magnet couplings as a function of angular displacement is measured of permanent magnet couplings through an semi-automated test system. The test-rig is capable of measuring torque up to 240 Nm (in increments of 0.1 Nm) at a angular step of 0.0011 degrees (mechanical). Axia... View full abstract»

• ### High speed characterization of the magnetoelectric hysteresis loop

Publication Year: 2013, Page(s):5671 - 5674
Cited by:  Papers (1)
| | PDF (399 KB) | HTML

A magnetoelectric hysteresis loop measurement system based on dynamic method was built under a demodulation concept with a lock-in amplifier as the high speed demodulator. A measuring speed as fast as 300 ms/point was achieved, and a complete and fluent magnetoelectric hysteresis loop could be obtained within minutes. Results show that the static magnetic phenomenon affects magnetoelectric effect ... View full abstract»

• ### Eddy Current Analysis Using a Nyström-Discretization of the Volume Integral Equation

Publication Year: 2013, Page(s):5675 - 5681
Cited by:  Papers (5)
| | PDF (1281 KB) | HTML

A high-order Nyström discretization of a volume integral equation derived for quasi-magnetostatic, time-harmonic eddy current analysis is presented. The formulation is based on the coupled magnetic field and magnetic vector potential integral equations. Both magnetic and conducting materials are included in the formulation. Analytic results for canonical problems are used to corroborate th... View full abstract»

• ### Active Control of Magnetic Field by Manipulating Induced Currents in Two-Dimensional Switch-Mounted Loop Array

Publication Year: 2013, Page(s):5682 - 5686
Cited by:  Papers (2)
| | PDF (1019 KB) | HTML

The active control of the transmitted magnetic field a few millimeters away from a switch-mounted loop array is experimentally demonstrated in the 10 MHz band. Control voltage and driving voltage are individually applied to each switch via a bias circuit such that each switch-mounted loop element works in either the “on-state” or “off-state.” An analytical model that ex... View full abstract»

• ### Analytic Nonlinear Correction to the Impedance Boundary Condition

Publication Year: 2013, Page(s):5687 - 5691
Cited by:  Papers (1)
| | PDF (674 KB) | HTML

The linear impedance boundary condition is based on the solution of Maxwell's equations for a slab of conducting material with a constant permeability and a given tangential surface magnetic field. The permeability is assumed high enough that the eddy currents are confined to a narrow thickness near the surface. By solving these equations for a similar geometry but with a nonlinear B-H curve, the ... View full abstract»

• ### Flux Linkage in Helical Windings and Application to Pick-up Coils

Publication Year: 2013, Page(s):5692 - 5697
| | PDF (1589 KB) | HTML

The paper presents an exact theory for the calculation of the flux linkage of multi-turn coils. The helical nature of the winding and the effects due to its complex geometry, including the leads, are taken into account. The parametric description of a surface bounded by the winding is considered, which leads to the determination of the analytical expression of the flux. The theory is applied to pi... View full abstract»

• ### Three-Dimensional Analytical Modeling Technique of Electromagnetic Fields of Air-Cored Coils Surrounded by Different Ferromagnetic Boundaries

Publication Year: 2013, Page(s):5698 - 5708
Cited by:  Papers (8)
| | PDF (2805 KB) | HTML

This paper presents a method for the calculation of the self- and mutual inductance of coils surrounded by air, positioned on top of a ferromagnetic plate and placed in a cavity inside a ferromagnetic plate. The magnetic fields around an array of air-cored coils are obtained by means of the three-dimensional magnetic vector potential using Fourier analysis. The current density distribution of a co... View full abstract»

• ### Optimal design of electromagnetic devices using a black-hole-based optimization technique

Publication Year: 2013, Page(s):5709 - 5714
Cited by:  Papers (4)
| | PDF (615 KB) | HTML

A new efficient and flexible optimization technique based on the black hole phenomenon is proposed for the optimization of electromagnetic devices. It is called the black-hole-based optimization technique. In order to show the effectiveness of the proposed technique, it has been demonstrated on a magnetizer by optimizing its pole face to obtain a desired magnetic flux density distribution. Based o... View full abstract»

• ### Residual and equilibrated error estimators for magnetostatic problems solved by finite element method

Publication Year: 2013, Page(s):5715 - 5723
Cited by:  Papers (6)
| | PDF (1963 KB) | HTML

In finite element computations, the choice of the mesh is crucial to obtain accurate solutions. In order to evaluate the quality of the mesh, a posteriori error estimators can be used. In this paper, we develop residual-based error estimators for magnetostatic problems with both classical formulations in term of potentials used, as well as the equilibrated error estimator. We compare their behavio... View full abstract»

• ### An adaptive degrees-of-freedom finite-element method for transient magnetic field analysis

Publication Year: 2013, Page(s):5724 - 5729
Cited by:  Papers (1)
| | PDF (881 KB) | HTML

A novel adaptive degrees-of-freedom (DoFs) finite-element method (FEM) for the numerical computation of transient magnetic fields is presented. The proposed adaptive FEM incorporates functions of both mesh refinement and mesh coarsening. The mesh refinement procedure is implemented using the longest edge bisection algorithm, whereas for the coarsening procedure, a novel DoFs constraining algorithm... View full abstract»

• ### Multiphysical analysis of moving-magnet planar motor topologies

Publication Year: 2013, Page(s):5730 - 5741
Cited by:  Papers (14)
| | PDF (2378 KB) | HTML

Moving-magnet magnetically levitated planar motors are considered for use as a wafer stage in the semiconductor lithographic industry. This puts high requirements on the accuracy and the dissipated power and cooling performance of such motors. The goal of this paper is to analyze the multi-physical behavior of three moving-magnet planar topologies using an electromagnetic model, a mechanical model... View full abstract»

## Aims & Scope

IEEE Transactions on Magnetics publishes research in science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Pavel Kabos
National Institute of Standards and Technology