# IEEE Transactions on Magnetics

## Volume 49 Issue 1  Part 1 • Jan. 2013

This issue contains several parts.Go to:  Part 2  | Part 3

## Filter Results

Displaying Results 1 - 25 of 49
• ### [Front cover]

Publication Year: 2013, Page(s): C1
| PDF (251 KB)
• ### IEEE Transactions on Magnetics publication information

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

Publication Year: 2013, Page(s):1 - 3
| PDF (165 KB)
• ### Chairman's Foreword

Publication Year: 2013, Page(s): 4
| PDF (91 KB) | HTML
• ### Preface [Selected Papers from the 9th European Magnetic Sensors and Actuators Conference (EMSA 2012)]

Publication Year: 2013, Page(s):5 - 6
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• ### Magnetic Nanoparticles for Therapy and Diagnostics

Publication Year: 2013, Page(s):7 - 10
Cited by:  Papers (11)
| | PDF (1376 KB) | HTML

The research and utilization of the magnetic nanoparticles in, e.g., biology and medicine have been preferentially oriented on magnetite Fe3O4 and maghemite γ-Fe2O3. The complex oxides allow a better control of the magnetic properties in a desirable way. We demonstrate this approach on an example of the La1-xSrxMnO3 View full abstract»

• ### Properties of Fe-Al Cores Made From Fe-Al Powders Annealed in a Damp Hydrogen Atmosphere

Publication Year: 2013, Page(s):11 - 14
Cited by:  Papers (1)
| | PDF (1921 KB) | HTML

Gas-atomized Fe-4, 6wt.%Al powders were annealed in a damp hydrogen atmosphere with a dew point of 0°C and -17°C in order to cover the powder surface with a high electrical resistivity layer of Al2O3 and then compressed into cores. The powders should be oxidized at a temperature higher than 800 °C in order to oxidize the a... View full abstract»

• ### Anisotropy Field in Ni Nanostripe Arrays

Publication Year: 2013, Page(s):15 - 17
Cited by:  Papers (2)
| | PDF (482 KB) | HTML

Anisotropy fields of nanostripe arrays can be investigated by various techniques. One of these techniques is the ferromagnetic resonance spectroscopy due to the fact that the resonance field depends directly on the anisotropy field strength and its angular spread. In order to understand the dynamic fenomena in these samples, nanostripe arrays of Ni have been prepared by interference lithography. T... View full abstract»

• ### GMI in Nanostructured FeNi/Ti Multilayers With Different Thicknesses of the Magnetic Layers

Publication Year: 2013, Page(s):18 - 21
Cited by:  Papers (11)
| | PDF (1671 KB) | HTML

Nanostructured multilayers are proposed as a competitive alternative to magnetoimpedance (MI) thick films. However, the effect of the thickness of the magnetic layers on the properties of MI multilayers is still unclear. To perform a systematic study, three multilayered structures consisting of magnetic Fe20Ni80 layers and nonmagnetic Ti layers were prepared by sputtering. In... View full abstract»

• ### Alternative Route for Obtaining ${rm NiFe}_{2}{rm O}_{4}$ Thin Films by Pulsed Laser Deposition

Publication Year: 2013, Page(s):22 - 25
| | PDF (1438 KB) | HTML

Ferrites in thin film form are usually obtained by pulsed laser deposition (PLD). This method can induce the presence of secondary phases, a problem which requires an annealing process. The study aimed at finding a PLD based method through which, in further studies, ferrites with a controllable phase composition can be obtained. Therefore, we obtained ferrite thin films in oxygen atmosphere and in... View full abstract»

• ### Synthesis and Characterization of Co-Substituted Ferrite Nanocomposites

Publication Year: 2013, Page(s):26 - 29
Cited by:  Papers (4)
| | PDF (581 KB) | HTML

We report the synthesis of CoxNi1-xFe2O4 (where x is 0, 0.25, 0.50, 0.75, 1) nanoparticles (NPs) by a wet chemical method using carboxymethyl cellulose (CMC) solution as surfactant. Their structure and magnetic properties were evaluated by X-ray diffraction (XRD), Fourier-Transform Infrared spectroscopy (FTIR) and vibrating sample magnetometer (VSM). The... View full abstract»

• ### Tailoring the Switching Field Dependence on External Parameters in Magnetic Microwires

Publication Year: 2013, Page(s):30 - 33
Cited by:  Papers (2)
| | PDF (322 KB) | HTML

We have studied the effect of thermal treatment on the sensitivity and stability of the switching field in bistable glass-coated Fe-Ni-Si-B microwire. We have found that annealing at 300°C/1 hour leads to the increase in the sensitivity of the switching field to the applied external stress. Moreover, the switching field fluctuation decreases after such treatment as a result of domain struct... View full abstract»

• ### Effects of Annealing Treatment on Low and High Frequency Magnetic Properties of Soft/Hard Biphase FeSiB/CoNi Microwires

Publication Year: 2013, Page(s):34 - 37
Cited by:  Papers (5)
| | PDF (897 KB) | HTML

Soft amorphous Fe76Si13B11 microwires were fabricated by Taylor-Ulitovsky technique and an external Co90Ni10 shell with magnetically harder behavior was additionally grown by combined sputtering and electro-plating techniques. The effect of annealing treatment at temperatures up to 700°C for 1 h on low-frequency coercivity an... View full abstract»

• ### Magnetopolymer Composites With Soft Magnetic Ferrite Filler

Publication Year: 2013, Page(s):38 - 41
Cited by:  Papers (3)
| | PDF (666 KB) | HTML

Thanks to their good magnetic properties, NiZn ferrites can be used as the soft magnetic filler in magneto-polymer composites. The ferrites having general composition NixZn1-xFe2O4 ( x=0.30, 0.33, 0.36, 0.42, and 0.50) were prepared by means of ceramic method and the magnetic properties, such as initial permeability μi and Curie t... View full abstract»

• ### Improving the Magnetoelectric Response of Laminates Containing High Temperature Piezopolymers

Publication Year: 2013, Page(s):42 - 45
Cited by:  Papers (8)
| | PDF (371 KB) | HTML

High magnetoelectric (ME) coefficients at room temperature have been found when 2-2 type laminates (one magnetostrictive, the other piezoelectric) made of iron-based Metglas alloys and PVDF piezoelectric polymer are used. Searching for a good ME response of such laminate composites when used at high temperatures, we have modified both constituents: first, by using magnetostrictive Metglas 2826 MB ... View full abstract»

• ### Magnetic Measurements of RE-Doped Cobalt Ferrite Thin Films

Publication Year: 2013, Page(s):46 - 49
Cited by:  Papers (7)
| | PDF (496 KB) | HTML

Cobalt ferrite is a ferrimagnetic material with properties which support its use in different types of devices. In bulk form CoFe2O4 presents the highest magnetostriction coefficient relative to other ferrites making it a good candidate for sensors and actuators. Due to the industries miniaturization trend, several research groups focused their study on obtaining novel thin f... View full abstract»

• ### Prospects of Using In-Containing Semiconductor Materials in Magnetic Field Sensors for Thermonuclear Reactor Magnetic Diagnostics

Publication Year: 2013, Page(s):50 - 53
Cited by:  Papers (9)
| | PDF (838 KB) | HTML

The work presents the results of experimental investigation into the effect of neutron irradiation on thin-film magnetic field Hall sensors. It is shown that sensors based on InSb/i-GaAs heterostructures are promising for application under radiation conditions in thermonuclear reactor magnetic diagnostics systems. At the same time, the presence of buffer layers in InAs/i-GaAs heterostructures make... View full abstract»

• ### The Magnetocaloric Effect of Heusler Microwires in Low and High Magnetic Fields

Publication Year: 2013, Page(s):54 - 57
Cited by:  Papers (5)
| | PDF (565 KB) | HTML

We are dealing with the influence of Hopkinson effect on magnetocaloric effect in glass-coated Ni-Mn-In-Co microwires in the given contribution. We have shown that although the entropy change is smaller in low fields, the refrigerant capacity per unit of applied field is three times higher for low field (300 Oe) comparing to that of 30 kOe. This points to the fact that Hopkinson effect can be empl... View full abstract»

• ### Towards Wafer Scale Inductive Determination of Magnetostatic and Dynamic Parameters of Magnetic Thin Films and Multilayers

Publication Year: 2013, Page(s):58 - 61
Cited by:  Papers (3)
| | PDF (601 KB) | HTML

We investigate an inductive probe head suitable for noninvasive characterization of the magnetostatic and dynamic parameters of magnetic thin films and multilayers on the wafer scale. The probe is based on a planar waveguide with rearward high frequency connectors that can be brought in close contact to the wafer surface. Inductive characterization of the magnetic material is carried out by vector... View full abstract»

• ### Orthogonal Fluxgate With Annealed Wire Core

Publication Year: 2013, Page(s):62 - 65
Cited by:  Papers (10)
| | PDF (686 KB) | HTML

Orthogonal fluxgate in fundamental mode has become a competitive sensor for low noise measurement of low frequency magnetic fields. The noise of this sensor has been recently reduced to 2.8 pT/√Hz at 1 Hz; however, it appears that noise lower than 2.5 pT/√Hz at 1 Hz cannot be achieved because of the physical limitations due to the intrinsic noise generated in the core of the fluxgate... View full abstract»

• ### Calibration of the 3-D Coil System's Orthogonality

Publication Year: 2013, Page(s):66 - 68
Cited by:  Papers (4)
| | PDF (343 KB) | HTML

Two methods were tested for calibration procedures of the 3-D coil system which is used as a source part of the magnetic tracker. Precise magnetometer's positions with respect to the coil system were used for determining of the nonorthogonality of the coil system as well as for determining of the magnetic moment. The needed number of the reference positions was measured to calculate six unknown ca... View full abstract»

• ### Metal Detector Signal Imprints of Detected Objects

Publication Year: 2013, Page(s):69 - 72
Cited by:  Papers (2)
| | PDF (863 KB) | HTML

Humanitarian demining missions are activities in which an operator safety and time consumption are key issues. To increase a discrimination ability of ATMID metal detector, which we have been using, we extended the capability of the detector with mounting inertial measurement unit (IMU) supplemented by two optical distance sensors on the detector head. That enabled us to perform dead reckoning bas... View full abstract»

• ### Measurement of DC Currents in the Power Grid by Current Transformer

Publication Year: 2013, Page(s):73 - 76
Cited by:  Papers (17)
| | PDF (557 KB) | HTML

DC currents in power grids are mainly caused by geomagnetic activity especially during magnetic storms. It is desirable to monitor these currents to prevent saturation of transformers, which may cause blackout. However, adding DC current sensors to existing installations would be very costly. We suggest to convert some of the existing current transformers to fluxgate DC current sensors by injectin... View full abstract»

• ### Impulse Current Transformer With a Nanocrystalline Core

Publication Year: 2013, Page(s):77 - 80
Cited by:  Papers (2)
| | PDF (626 KB) | HTML

The objective of this paper is to propose and to validate the behavior of an impulse current transformer with a nanocrystalline alloy toroidal core. The purpose of this transformer is to measure a current square waveform with a fundamental harmonic frequency of 25 kHz. Current ratio 1:1 and the real burden are assumed, and the transformer will operate in an electric power system at voltage levels ... View full abstract»

• ### Neel Effect Toroidal Current Sensor

Publication Year: 2013, Page(s):81 - 84
Cited by:  Papers (2)  |  Patents (2)
| | PDF (685 KB) | HTML

In this paper, a configuration for a Neel effect ac-dc current sensor designed with second harmonic sensing in view is proposed. This configuration relies on the use of two toroidal superparamagnetic cores wound in opposite direction with respect to each other and connected in series. An analytical model is developed, which shows that the component of the output signal at the excitation frequency,... View full abstract»

## Aims & Scope

IEEE Transactions on Magnetics is a peer-reviewed, archival journal in science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage. The journal publishes scholarly articles of archival value as well as tutorial expositions and critical reviews of classical subjects and topics of current interest.

Full Aims & Scope

## Meet Our Editors

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