Tensor Nature of Permeability and Its Effects in Inductive Magnetic Devices
| Autor: | Randhir Bubber, Dok Won Lee, Shan X. Wang, T. Schneider, Yongki Min, Ming Mao, Liangliang Li, Kyu-Pyung Hwang |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Condensed matter physics Magnetic energy Physics::Optics Physics::Classical Physics Inductor Magnetic susceptibility Computer Science::Other Electronic Optical and Magnetic Materials Magnetic field Magnetic anisotropy Magnetic core Permeability (electromagnetism) Tensor Electrical and Electronic Engineering |
| Zdroj: | IEEE Transactions on Magnetics. 43:2373-2375 |
| ISSN: | 0018-9464 |
| DOI: | 10.1109/tmag.2007.892585 |
| Popis: | The tensor nature of the permeability of soft magnetic materials with an in-plane anisotropy was investigated. Using tensor transformation, the measured permeability was proportional to cos2 alpha, where alpha is the angle between the external exciting magnetic field and hard axis of magnetic material, which was proven by experimental data for thin-film materials CoFeHfO and CoTaZrTb. A new type of inductor was designed and simulated by Ansoft Maxwell 3-D to study the effects of the tensor nature of the permeability in the simulation of inductors. It is important to appropriately account for the tensor nature of the permeability of soft magnetic materials in inductive device simulation to establish realistic device models. A magnetic integrated inductor with extremely low DC resistance ( |
| Databáze: | OpenAIRE |
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