# IEEE Transactions on Magnetics

## Filter Results

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

Publication Year: 2006, Page(s): c1
| PDF (391 KB)
• ### IEEE Transactions on Magnetics publication information

Publication Year: 2006, Page(s): c2
| PDF (34 KB)

Publication Year: 2006, Page(s):3793 - 3794
| PDF (57 KB)
• ### IEEE Magnetics Society Distinguished Lecturers for 2007

Publication Year: 2006, Page(s):3795 - 3798
| PDF (960 KB)
• ### Sintering Effect of Annealed FePt Nanocrystal Films Observed by Magnetic Force Microscopy

Publication Year: 2006, Page(s):3799 - 3802
Cited by:  Papers (4)
| | PDF (3473 KB) | HTML

Chemically synthesized FePt nanocrystals can exhibit room temperature ferromagnetism after being annealed at temperatures above 500degC. In thick films composed of FePt nanocrystals, the coercivity can be quite large. However, the coercivity of thin films has been found to decrease significantly with decreasing thickness, to the point that ferromagnetism at room temperature is lost. We studied 12 ... View full abstract»

• ### Computer-Aided Performance Evaluation of a Multichannel Transcranial Magnetic Stimulation System

Publication Year: 2006, Page(s):3803 - 3808
Cited by:  Papers (12)
| | PDF (3660 KB) | HTML

We have evaluated a multichannel transcranial magnetic stimulation (TMS) system using realistic simulations based on the boundary element method (BEM). We investigated various configurations and types of stimulation coils by means of quantitative measures such as targeting accuracy and field concentration. The simulation studies applied to four different head-brain models suggest improved coil typ... View full abstract»

• ### Generalized Constructive Model of Hysteresis

Publication Year: 2006, Page(s):3809 - 3817
Cited by:  Papers (4)  |  Patents (1)
| | PDF (322 KB) | HTML

We describe a generalized constructive model of rate independent scalar hysteresis. It consists of an algorithm that uses a set of experimental hysteresis minor loop vertical chords. The introduced model requires new, less constraining properties than the congruency and equal vertical chords properties required by the classical and the generalized Preisach models. Our model allows for fitting tran... View full abstract»

• ### A Method for Optimal Identification of a Stop Model With Input-Dependent Shape Function

Publication Year: 2006, Page(s):3818 - 3824
Cited by:  Papers (4)
| | PDF (482 KB) | HTML

An optimal identification method is developed for an efficient hysteresis model: a stop model having an input-dependent shape function. To simplify the identification procedure, the input-dependent shape function is given by the product of a weighting function and an input-independent shape function. The optimal weighting function is determined using the least-squares method. To obtain an optimal ... View full abstract»

• ### Constriction and Corner Permeances for Finite Domains

Publication Year: 2006, Page(s):3825 - 3831
Cited by:  Papers (5)
| | PDF (388 KB) | HTML

The known formulas for two-dimensional "corner" and "constriction" permeances, which were derived by using conformal mappings for infinite domains, can be applied only for large enough domains. In this paper, we analytically solve the problem for finite domains and propose new exact and approximate formulas. We show that, for finite domains, the corner and constriction permeances can be much small... View full abstract»

• ### A Three-Dimensional Semi-Analytical Study of the Magnetic Field Excitation in a Radial Surface Permanent-Magnet Synchronous Motor

Publication Year: 2006, Page(s):3832 - 3841
Cited by:  Papers (10)
| | PDF (382 KB) | HTML

This paper presents a three-dimensional analytic study of some radial surface permanent-magnet machines, these machines being slotless and without polar pieces. The permanent magnets are represented by Coulomb's model. The sources are developed into a Fourier series. The method of separation of variables in Laplace's equations is used to calculate the magnetic scalar potentials, which lead directl... View full abstract»

• ### Simplified Design Methodology for a Slotless Brushless DC Motor

Publication Year: 2006, Page(s):3842 - 3846
Cited by:  Papers (23)
| | PDF (354 KB) | HTML

The paper presents a simplified analytical method to design a small two-pole slotless brushless dc motor. Using only a few approximations, the motor analytical model is formulated to generate a system of equations. The system can be solved analytically, producing a motor design for given specifications. The method is used to design a motor with the specifications 150 W, 10 000 rpm, and 18 V View full abstract»

• ### Optimal Design of Multi-Airgap Electrical Machines: An Unknown Size Mixed-Constrained Global Optimization Formulation

Publication Year: 2006, Page(s):3847 - 3853
Cited by:  Papers (9)
| | PDF (548 KB) | HTML

This paper solves, in a rational way, more sophisticated electrical machine design problems by extending the work done by Fitan et al. It addresses the special case of multi-airgap cylindrical concentric machines. The solution requires a reformulation of the inverse problem associated with the design of electrical machines. Thus, a new mixed-constrained global optimization problem has to be solved... View full abstract»

• ### Active-Passive Shielding for MRI Acoustic Noise Reduction: Network Analysis

Publication Year: 2006, Page(s):3854 - 3860
Cited by:  Papers (7)
| | PDF (317 KB) | HTML

We have modeled the effect of passive copper shielding applied to the outside of an actively shielded, axisymmetric z-gradient coil assembly, with the aim of substantially reducing induced eddy currents in the cryostat inner bore that create acoustic noise. For the purpose of calculation, the cylindrical cryostat inner bore and the passive copper shielding are coaxial and are imagined to be sliced... View full abstract»

• ### Coil and Magnet Design for Nuclear Magnetic Resonance in Inhomogeneous Field

Publication Year: 2006, Page(s):3861 - 3867
Cited by:  Papers (6)
| | PDF (1863 KB) | HTML

High-resolution nuclear magnetic resonance (NMR) spectrometry is possible in nonhomogeneous magnetic fields-such as those in portable equipment-if the static and the radio-frequency (RF) magnetic fields are perpendicular and correlated in the measurement volume. From the easy-axis rotation theorem and the Amperian currents model, it is possible to exactly match two magnetic fields in two-dimension... View full abstract»

• ### A Fast and Accurate Method for Measuring Adjacent-Track Erasure

Publication Year: 2006, Page(s):3868 - 3873
Cited by:  Papers (3)  |  Patents (6)
| | PDF (779 KB) | HTML

This paper reports on a novel spin-stand method to measure adjacent-track erasure (ATE). The method divides a track into multiple sectors and makes use of the built-in servo system to ensure a highly accurate, amplitude-based measurement. By arranging subtracks uniformly across the range of interest around a center track, a quasi-continuous, detailed ATE profile can be obtained. We discuss the var... View full abstract»

• ### Side-Track Erasure Processes in Perpendicular Recording

Publication Year: 2006, Page(s):3874 - 3879
Cited by:  Papers (8)  |  Patents (3)
| | PDF (3950 KB) | HTML

In perpendicular recording, substantial erasure of the stored data patterns can occur during the writing process. Among all those erasure processes, side-track erasure (STE) is one of the critical issues in drive head/media integration. Unlike the adjacent track erasure (ATE) process, the locations of the STE affected areas are often many tens of tracks away from the central writing track location... View full abstract»

• ### Effects of the Disproportionation Stage of the HDDR Process on Magnetic Properties and Microstructure of Pr $_13$Fe $_80$B $_7$ Alloys

Publication Year: 2006, Page(s):3880 - 3882
Cited by:  Papers (1)
| | PDF (477 KB) | HTML

Effects of the heat treatment conditions of the disproportionation stage on magnetic properties of hydrogenation disproportionation desorption recombination (HDDR) Pr13Fe80B7 material are investigated. The results show that the HDDR Pr13Fe80B7 material disproportionated by heating from room temperature under hydrogen (C-HD), has hi... View full abstract»

• ### Pt Content Dependence of Magnetic Properties of CoPt/Ru Patterned Films

Publication Year: 2006, Page(s):3883 - 3885
Cited by:  Papers (7)
| | PDF (828 KB) | HTML

The magnetic properties of dot arrays made of CoPt/Ru perpendicular films (20 nm thickness) were examined as a function of Pt content. The CoPt dot arrays with a dot size D of 140 nm showed a single domain state, after removal of the applied field equal to Hr. Hr decreased from 5.2 kOe to 3.0 kOe as the Pt content decreased from 20 at% to 14 at%. The angular dependence of H View full abstract»

• ### Magnetostriction Versus Magnetization of Hiperco 50 From 20 $^circ$C to 700 $^circ$C

Publication Year: 2006, Page(s):3886 - 3888
Cited by:  Papers (1)
| | PDF (107 KB) | HTML

We report simultaneous measurement of magnetostriction and magnetization on strip samples of polycrystalline Hiperco 50 (49Fe 49Ni 2V, wt%) in fields of more than 300 Oe and over the temperature range from room temperature to 700degC. As a physical process, magnetostriction is clearly dependent on the state of magnetization of the sample, not on the applied magnetic field. From room temperature to... View full abstract»

• ### Surface and Bulk Magnetic Hysteresis Loops of Co-Rich Glass Covered Microwires

Publication Year: 2006, Page(s):3889 - 3892
Cited by:  Papers (13)
| | PDF (134 KB) | HTML

The magnetization reversal process in the surface and volume areas of Co-rich glass covered microwires has been investigated. The value of the helical anisotropy has been determined in two wires with different thickness of glass covering. The dependence of the coercive field on the frequency of the external axial magnetic field was studied in the surface and volume of the microwires View full abstract»

• ### Hall Biosensor With Integrated Current Microstrips for Control of Magnetic Beads

Publication Year: 2006, Page(s):3893 - 3895
Cited by:  Papers (6)
| | PDF (1671 KB) | HTML

Magnetic labeling of biomolecules shows potential as an alternative to fluorescence for monitoring molecular interactions associated with DNA hybridization and antibody-antigen analysis. Current carrying microstrips were integrated with micro-Hall biosensors to manipulate and collect superparamagnetic beads by field gradients generated due to direct currents passed through the strips. Magnetic bea... View full abstract»

Publication Year: 2006, Page(s): 3896
| PDF (5287 KB)
• ### 2006 Index

Publication Year: 2006, Page(s):3897 - 4000
| PDF (1346 KB)
• ### IEEE Magnetics Society Information

Publication Year: 2006, Page(s): c3
| PDF (29 KB)
• ### IEEE Transactions on Magnetics institutional listings

Publication Year: 2006, Page(s): c4
| PDF (548 KB)

## 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