# IEEE Magnetics Letters

## Filter Results

Displaying Results 1 - 14 of 14
• Electromagnetics
• ### Flexible Control of Magnetic Fields by Shaped-Optimized Three-Dimensional Coil Arrays

Publication Year: 2019, Article Sequence Number: 2100105
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The synthesis of desired low-frequency magnetic fields is of high importance in electromagnetic design. The use of coil arrays (CAs) is among the most effective methods for realizing a desired field. However, in designing CAs, researchers are faced with a lack of design parameters. At low frequencies, the design parameters are usually limited to the size and phase of the source and the size and po... View full abstract»

• ### Precise Model-Free Spline-Based Approach for Magnetic Field Mapping

Publication Year: 2019, Article Sequence Number: 2100405
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Untethered magnetic manipulation has found applications in a rapidly increasing number of fields, ranging from minimally invasive surgery to assembly of industrial microelectromechanical systems. Despite this relevance, present-day literature on precise magnetic mapping is sparse, especially for magnetic fields affected by external disturbances. In this letter, we address this deficiency by introd... View full abstract»

• ### Electromagnetic Position Sensing and Force Feedback for a Magnetic Stylus With an Interactive Display

Publication Year: 2019, Article Sequence Number: 2100505
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This letter describes the design, implementation, validation, and demonstration of an electromagnetic system that can be incorporated into a graphical display to provide computer-controlled planar feedback forces on the tip of a stylus or fingertip-mounted magnet held near the display surface, according to the magnet position and virtual fixtures implemented in software. An array of magnetometer s... View full abstract»

• Biomagnetics
• ### Activation of Microwave Signals in Nanoscale Magnetic Tunnel Junctions by Neuronal Action Potentials

Publication Year: 2019, Article Sequence Number: 3101405
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Action potentials are the basic unit of information in the nervous system, and their reliable detection and decoding holds the key to understanding how the brain generates complex thought and behavior. Transduction of these signals into microwave signal oscillations can enable wireless sensors that report on brain activity through magnetic induction. In this letter, we demonstrate that action pote... View full abstract»

• Microwave Magnetics
• ### Soft Magnetism, Magnetostriction, and Microwave Properties of Fe-Ga-C Alloy Films

Publication Year: 2019, Article Sequence Number: 5500705
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A systematic investigation of the soft magnetism, the change of modulus of elasticity with magnetization (ΔE effect), magnetostriction, and microwave properties has been carried out on iron-gallium-carbon thin films over a wide carbon content range. The phase transformation of the Fe-Ga-C films from bcc polycrystalline to amorphous leads to excellent magnetic softness with a low coercivity of less... View full abstract»

• ### Strong Coupling of Magnons to Microwave Photons in Three-Dimensional Printed Resonators

Publication Year: 2019, Article Sequence Number: 5501205
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We report on ferromagnetic resonant mode hybridization in reentrant cavities made with a commercial three-dimensional (3-D) printer, followed by conventional 3-D metallization with copper and tin. The cavity volume was only 7$\%$ that of a standard cavity resonating at the same frequency while maintaining a high quality factor.... View full abstract»

• Nanomagnetics
• ### Simultaneous Control of Interlayer Exchange Coupling and the Interfacial Dzyaloshinskii–Moriya Interaction in Ru-Based Synthetic Antiferromagnets

Publication Year: 2019, Article Sequence Number: 6100304
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We present a Ru-based synthetic antiferromagnet (SAF) made with asymmetric ferromagnetic building blocks (Pt/Co/Ir or Ir/Co/Pt) to couple their interfacial Dzyaloshinskii-Moriya interaction (DMI) with strong interlayer exchange coupling (IEC). This combination may lead to new types of antiferromagnetic domain walls (DWs), which are conceptually presented in this letter. These include an energetica... View full abstract»

• ### Laser-Reduced Zeolite Imidazole Framework-67 as Magnetic Absorbents for Oil Separation in Water

Publication Year: 2019, Article Sequence Number: 6101303
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We reduced zeolite imidazole framework-67 by laser so as to prepare porous carbon materials embedded with cobalt nanoparticles. The composites exhibited ferromagnetic behavior. The parameters of laser reduction were optimized for oil absorption with high capacity and good reusability. This approach can open a new class of ferromagnetic porous absorbents and represent advancement toward overcoming ... View full abstract»

• Information Storage
• ### Signal Detection Under Multipath Intersymbol Interference in Staggered Bit-Patterned Media Recording Systems

Publication Year: 2019, Article Sequence Number: 6501005
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Bit-patterned media recording was invented with the aim of achieving high areal density. However, bit-patterned media recording suffers from two-dimensional (2-D) interference problems, including intersymbol interference in the down-track direction and intertrack interference in the cross-track direction. The 2-D interference corrupts the readback signal and degrades the performance of bit-pattern... View full abstract»

• Soft Magnetic Materials
• ### Magnetic Loss Decomposition in Co-Doped Mn-Zn Ferrites

Publication Year: 2019, Article Sequence Number: 7100205
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The magnetic properties of sintered Mn-Zn ferrites, Co2+ enriched by addition of CoO up to 6000 ppm, were measured in ring samples for a broad range of peak polarization values (2-200 mT) and frequencies (dc - 1 GHz). The results were analyzed by separating the contributions to the magnetization process of domain wall motion and magnetization rotation, and applying the concept of loss d... View full abstract»

• ### Magnetic Thin-Film Inductors With Induced Radial Anisotropy for Improved Inductance Density

Publication Year: 2019, Article Sequence Number: 7100604
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This letter presents the design and electrical performance of integrated power inductors based on thin-film magnetic cores with radial anisotropy induced by in situ magnetic annealing. The magnetic anneal uses an additional coil, as part of the CMOS interconnect below the core, to simultaneously apply a biasing magnetic field and act as a resistive heater. Following annealing, dev... View full abstract»

• Hard Magnetic Materials
• ### Dy Electrodeposition on Sintered Nd-Fe-B

Publication Year: 2019, Article Sequence Number: 7500905
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A low-cost, high-efficiency electrodeposition technique was used to enhance the coercivity of Nd-Fe-B. Dy was electrodeposited on the surface of a sintered Nd-Fe-B magnet in a nonaqueous solution. The use of the organic solvent dimethylformamide results in improved electrodeposition and adhesion compared to ethanol. A dense deposition layer was achieved when current density was <; 8 A/dm2<... View full abstract»

• Magnetic Instruments
• ### High-Sensitivity Three-Axis Vector Magnetometry Using Electron Spin Ensembles in Single-Crystal Diamond

Publication Year: 2019, Article Sequence Number: 8101104
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We demonstrate a three-axis vector magnetometer based on ensembles of negatively charged nitrogen vacancy centers in single-crystal diamond. A diamond with $\text{C}_{3v}$ symmetry was used to establish the coordinate system for vector magnetic field sensing. We control the external static magnetic field with three-axis Helmhol... View full abstract»

• Erratum
• ### Correction to “Electrochemical Synthesis of Co-Rich Nanowires for Barcodes”

Publication Year: 2019, Article Sequence Number: 9100801
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This erratum corrects scanning electron microscopy images and a magnetization curve that appeared in an article by the authors. View full abstract»

## Aims & Scope

IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics.

Full Aims & Scope

## Meet Our Editors

Editor
Ron B. Goldfarb
National Institute of Standards and Technology