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# IEEE Transactions on Magnetics

## Issue 8  Part 2 • Aug. 2013

This issue contains several parts.Go to:  Part 1

## Filter Results

Displaying Results 1 - 25 of 34
• ### [Front cover]

Publication Year: 2013, Page(s): C1
| PDF (183 KB)
• ### IEEE Transactions on Magnetics publication information

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

Publication Year: 2013, Page(s):4745 - 4747
| PDF (167 KB)
• ### In Memoriam

Publication Year: 2013, Page(s): 4748
| PDF (342 KB) | HTML
• ### Fast and Accurate Calculation of the Demagnetization Tensor for Systems With Periodic Boundary Conditions

Publication Year: 2013, Page(s):4749 - 4755
Cited by:  Papers (2)
| | PDF (1639 KB) | HTML

In micromagnetic simulations, the magnetization in one simulation cell is acted upon by the demagnetization field that is generated by all simulation cells. In simulations with periodic boundary conditions, this leads to an infinite number of interactions that have to be taken into account. A method is presented that allows for an accurate calculation of the demagnetization tensor with one and two... View full abstract»

• ### Dependences of Specific Loss Power on Magnetic Field and Frequency in Elongated Platelet $gamma$-Fe $_{2}$O $_{3}$ Particles Using Hysteresis-Loss Heating

Publication Year: 2013, Page(s):4756 - 4760
Cited by:  Papers (5)
| | PDF (2608 KB) | HTML

Elongated platelet γ-Fe2O3 particles with particle sizes of about 30 to 100 nm were prepared for magnetic thermoablation using hysteresis-loss heating of the ferromagnetic particles. The coercive force was based on the shape anisotropy of the elongated shape. The dependences of specific loss power (SLP) on the magnetic field strength and frequency were examined for par... View full abstract»

• ### Reducing Read Latency of Shingled Magnetic Recording With Severe Intertrack Interference Using Transparent Lossless Data Compression

Publication Year: 2013, Page(s):4761 - 4767
| | PDF (1322 KB) | HTML

With the distinct advantage of retaining conventional head and media, the emerging shingled recording technology improves areal storage density through intentional track overlapping that nevertheless introduces severe intertrack interference (ITI). An economically tenable option for shingled drives is to utilize a single read head. As we continue to increase its areal storage density, there will b... View full abstract»

• ### Low-Complexity Iterative Row-Column Soft Decision Feedback Algorithm for 2-D Inter-Symbol Interference Channel Detection With Gaussian Approximation

Publication Year: 2013, Page(s):4768 - 4773
Cited by:  Papers (10)
| | PDF (979 KB) | HTML

In this paper, we study the complexity reduction problem of the iterative row-column soft decision feedback algorithm (IRCSDFA) for 2-D inter-symbol interference (ISI) detection. Specifically, Gaussian approximation (GA) is employed in both the component row and column detectors of the IRCSDFA in order to reduce its computational complexity. With the employment of GA, the state space dimension of ... View full abstract»

• ### A Novel Mat-Based System for Position-Varying Wireless Power Transfer to Biomedical Implants

Publication Year: 2013, Page(s):4774 - 4779
Cited by:  Papers (24)
| | PDF (850 KB) | HTML

Wireless power transfer via magnetically resonant coupling is a new technology to deliver power over a relatively long distance. Here, we present a mat-based design to wirelessly power moving targets based on this technology. Our design is specifically applied to transcutaneously power medical implants within free-moving laboratory animals. Our system comprises a driver coil array, a hexagonally p... View full abstract»

• ### Tunable Left-Handed Characteristics of Ferrite Rectangular Waveguide Periodically Loaded With Complementary Split-Ring Resonators

Publication Year: 2013, Page(s):4780 - 4784
Cited by:  Papers (2)
| | PDF (935 KB) | HTML

We propose, for the first time, a tunable left-handed (LH) waveguide consisting of an array of complementary split-ring resonators built on the broad wall of a rectangular waveguide filled with ferrite material. The left-handed behavior is caused by the negative permittivity of the complementary split-ring resonators together with the negative permeability of the transversely magnetized ferrite. T... View full abstract»

• ### Finite Element Analysis of Nondestructive Testing Eddy Current Problems With Moving Parts

Publication Year: 2013, Page(s):4785 - 4794
Cited by:  Papers (7)
| | PDF (1931 KB) | HTML

We present the logical expressions (LE) approach that allows fast computation of three-dimensional eddy current problems, including parts in motion. The approach applies time-dependent logical expressions to describe moving parts of the model on a fixed computational grid. The study is motivated by a novel nondestructive testing technique called Lorentz force eddy current testing (LET), which enab... View full abstract»

• ### MALTS: A Tool to Simulate Lorentz Transmission Electron Microscopy From Micromagnetic Simulations

Publication Year: 2013, Page(s):4795 - 4800
Cited by:  Papers (4)
| | PDF (906 KB) | HTML

Here we describe the development of the MALTS software which is a generalized tool that simulates Lorentz Transmission Electron Microscopy (LTEM) contrast of magnetic nanostructures. Complex magnetic nanostructures typically have multiple stable domain structures. MALTS works in conjunction with the open access micromagnetic software Object Oriented Micromagnetic Framework or MuMax. Magnetically s... View full abstract»

• ### Modeling and Analysis of Eddy-Current Damping Effect in Horizontal Motions for a High-Precision Magnetic Navigation Platform

Publication Year: 2013, Page(s):4801 - 4810
Cited by:  Papers (2)
| | PDF (2057 KB) | HTML

Recent advancements in micro/nano-domain technologies have led to a renewed interest in ultra-high resolution magnetic navigation platforms. A magnetic navigation platform (MNP) has been developed at the MagLev Microrobotics Lab of the University of Waterloo, Waterloo, ON, Canada. This platform consists of two separate basic components: a magnetic drive unit and a microrobot. The magnetic drive un... View full abstract»

• ### An Improved Artificial Bee Colony Algorithm for Optimal Design of Electromagnetic Devices

Publication Year: 2013, Page(s):4811 - 4816
Cited by:  Papers (15)
| | PDF (1009 KB) | HTML

Optimal design problems of electromagnetic devices are generally multimodal, nondifferentiable, and constrained. This makes metaheuristic algorithm a good choice for solving such problems. In this paper, a newly developed metaheuristic algorithm is presented to address the aforementioned issues. The proposed algorithm is based on the paradigm of artificial bee colony (ABC). A drawback of the origi... View full abstract»

• ### Analytical and Semi-Analytical Solutions for the Force Between Circular Loops in Parallel Planes

Publication Year: 2013, Page(s):4817 - 4823
Cited by:  Papers (3)
| | PDF (1972 KB) | HTML

Closed-form solutions are presented for the force between noncoaxial coplanar circular current loops. A semi-analytical solution is given for the case where the loops lie in parallel planes. Numerical results are given which cross check these solutions against each other and against an independently developed method. The closed form solution for the force between a circular loop and a coaxial circ... View full abstract»

• ### Synthesis and Magnetic Behavior of Nickel Zinc Ferrite Nanoparticles Coated Onto Carbon Microcoils

Publication Year: 2013, Page(s):4824 - 4826
| | PDF (425 KB) | HTML

Magnetic nanoparticles consisted of nickel zinc ferrite (NZF) were chemically synthesized by co-precipitation and simultaneously coated onto carbon microcoils (CMC), and their structure and magnetic properties were investigated. The samples were prepared at various mass ratios of CMC : NZF ranging from 1 : 5 to 5 : 1. According to X-ray diffraction (XRD) measurements, all the samples synthesized i... View full abstract»

• ### Magnetostrictive Performance in Py/TbFe Coupled Bilayers: Dependence on Hard Layer Thickness

Publication Year: 2013, Page(s):4827 - 4830
Cited by:  Papers (1)
| | PDF (560 KB) | HTML

Magnetostrictive TbFe was chosen as hard layer, and the spin dynamics in the coupled bilayers Py(10 nm)/TbFe(t nm) (Py-permalloy; t=4, 7, 10, 30) were investigated by taking advantage of the engineering magnetostrictive strain under the constraints of the measurement. The dependence of the engineering magnetostrictive strain on TbFe layer thickness reflects a competitive process between the interf... View full abstract»

• ### Materials Selection Exercise for Electromagnetic Launcher Rails

Publication Year: 2013, Page(s):4831 - 4838
Cited by:  Papers (2)
| | PDF (1585 KB) | HTML

Electromagnetic launchers (EML) are currently limited due to rail durability. The rail operating environment consists of large electrical currents, high local temperatures, large electromagnetic loads, and high sliding velocities. The desire to maximize magnetic energy for performance and durability for economic viability are the main objectives in selecting a rail material. A systematic process, ... View full abstract»

• ### Metglas/PZT-Magnetoelectric 2-D Geomagnetic Device for Computing Precise Angular Position

Publication Year: 2013, Page(s):4839 - 4842
Cited by:  Papers (8)
| | PDF (945 KB) | HTML

A magnetoelectric 2-D geomagnetic device for the precisely angular position computation is provided. The magnetic sensor module consists of two Metglas/PZT magnetoelectric 1-D sensors in an orthogonal arrangement. The sensor signals are excited and detected by a self-made digital lock-in amplifier. For mapping output sensor signals, normalization was performed on the operational module. Both spati... View full abstract»

• ### Planar Microcoil Optimization of MEMS Electrodynamic Microspeakers

Publication Year: 2013, Page(s):4843 - 4850
Cited by:  Papers (4)
| | PDF (1012 KB) | HTML

A method for optimizing the planar microcoil of MEMS electrodynamic microspeakers with the aim of maximizing the electroacoustic efficiency is presented. The proposed approach is based on a mixed-model using both analytical models and finite element method (FEM). FEM simulation was used for computing the spatial distribution of the magnetic field created by the permanent magnets, making thus possi... View full abstract»

• ### Analysis of a Mn–Zn Ferrite Bundle EMI Suppressor Using Different Suppressing Principles and Configurations

Publication Year: 2013, Page(s):4851 - 4857
Cited by:  Papers (2)
| | PDF (1441 KB) | HTML

A novel round cable electromagnetic interference (EMI) suppressor comprising a bundle of Mn-Zn ferrite tubes was realized using different principles of suppressing, such as direct suppressing, inverting/suppressing, transform/inverting suppressing, and transform/short circuited secondary suppressing. Different primary to secondary configurations were realized for each suppressing principle and cha... View full abstract»

• ### Experimental Studies and New Feature Extractions of MBN for Stress Measurement on Rail Tracks

Publication Year: 2013, Page(s):4858 - 4864
Cited by:  Papers (1)
| | PDF (1194 KB) | HTML

The paper reports the design and implementation of magnetic Barkhausen noise (MBN) systems as well as its application and experiments for stress measurement on the rail track. Features of MBN signals including root mean square, average amplitude and pulse counts are calculated and analyzed, and a new feature the ratio of peak value and width at half maximum is introduced. All of these features of ... View full abstract»

• ### Closed-Double-Magnetic Circuit for a Long-Stroke Horizontal Electromagnetic Vibration Exciter

Publication Year: 2013, Page(s):4865 - 4872
Cited by:  Papers (2)
| | PDF (1748 KB) | HTML

A novel closed-double-magnetic circuit (CDMC) was presented to achieve high and uniform magnetic flux density (MFD) in the long air gap (LAG) of a long-stroke horizontal electromagnetic vibration exciter. First, the normal single-magnetic circuit (SMC) and the proposed CDMC were modeled by lumped element circuit using equivalent circuit principle, analyzed theoretically by the Kirchhoff's law and ... View full abstract»

• ### Analytical 2-D Calculations of Torque, Inductance, and Back-EMF for Brushless Slotless Machines With Surface Inset Magnets

Publication Year: 2013, Page(s):4873 - 4884
Cited by:  Papers (12)
| | PDF (3802 KB) | HTML

In this paper, the electromagnetic torque, reluctance torque, inductance, and back-EMF are analytically calculated for brushless slotless machines with surface inset magnets. The calculations are based on the 2-D analytical magnetic field distributions. Although the expressions can be used for any magnetization patterns, the effects of three different magnetization patterns, i.e., radial, parallel... View full abstract»

• ### Influence of the Stator Windings Configuration in the Currents and Zero-Sequence Voltage Harmonics in Permanent Magnet Synchronous Motors With Demagnetization Faults

Publication Year: 2013, Page(s):4885 - 4893
Cited by:  Papers (11)
| | PDF (1507 KB) | HTML

Demagnetization faults in permanent magnet synchronous motors may generate specific fault harmonic frequencies in the stator currents and the zero-sequence voltage component (ZSVC) spectra. Hence, by analyzing the stator currents or/and the ZSVC spectra it is possible to develop fault diagnosis schemes to detect such faults. In order to have a broad view of such effects, a representative set of st... 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