PapersFlow Research Brief
Magnetic Properties and Applications
Research Guide
What is Magnetic Properties and Applications?
Magnetic Properties and Applications is the study of magnetostrictive properties, hysteresis modeling, and applications of magnetostrictive materials such as Fe-Ga and Galfenol alloys, including their impact on core losses in electrical steels and transformer inrush currents.
This field encompasses 75,645 papers on magnetic materials, with a focus on magnetostriction, hysteresis models, and Fe-Ga alloys. Key areas include the structural and magnetic behavior of these materials under mechanical and thermal conditions. Growth rate over the past 5 years is not available.
Topic Hierarchy
Research Sub-Topics
Magnetostriction in Fe-Ga Alloys
This sub-topic investigates the giant magnetostrictive properties of Fe-Ga (Galfenol) alloys under mechanical stress and magnetic fields. Researchers study alloy composition effects on strain and coupling coefficients.
Magnetic Hysteresis Modeling
This sub-topic develops phenomenological and micromagnetic models for hysteresis loops in ferromagnetic materials. Researchers validate models against experimental data for dynamic magnetization processes.
Core Losses in Electrical Steels
This sub-topic analyzes classical, excess, and anomalous core losses in non-oriented and grain-oriented electrical steels. Researchers explore loss minimization through alloying and processing techniques.
Transformer Inrush Currents
This sub-topic examines transient inrush currents in power transformers due to magnetization saturation. Researchers model remnant flux and develop mitigation strategies using controlled switching.
Magnetostrictive Materials Applications
This sub-topic covers engineering applications of Terfenol-D and Galfenol in sonar transducers, vibration dampers, and precision positioning. Researchers optimize material performance under operational conditions.
Why It Matters
Magnetic properties and applications enable reduced core losses in electrical steels and control of transformer inrush currents through magnetostrictive materials like Galfenol alloys. Stoner and Wohlfarth (1948) provided a mechanism for magnetic hysteresis in heterogeneous alloys, which explains high coercivities in permanent magnet alloys. This supports developments in efficient transformers and sensors, where hysteresis modeling minimizes energy dissipation in power systems.
Reading Guide
Where to Start
"A mechanism of magnetic hysteresis in heterogeneous alloys" by Edmund C. Stoner and E.P. Wohlfarth (1948), as it provides the foundational mechanism for hysteresis in alloys, essential for understanding magnetostrictive properties and core losses.
Key Papers Explained
Stoner and Wohlfarth (1948) in 'A mechanism of magnetic hysteresis in heterogeneous alloys' establishes hysteresis mechanisms in alloys, which Nogués and Schuller (1999) in 'Exchange bias' extends to interfacial effects in bilayers. Bean (1964) in 'Magnetization of High-Field Superconductors' builds on hysteresis with a sponge model for superconductors. Holstein and Primakoff (1940) in 'Field Dependence of the Intrinsic Domain Magnetization of a Ferromagnet' analyzes domain magnetization variations, linking to Vansteenkiste et al. (2014) simulations in 'The design and verification of MuMax3'.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current work emphasizes magnetostrictive modeling in Fe-Ga alloys for electrical steels, with no recent preprints available. Focus remains on hysteresis in transformers and Galfenol under stress.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | The mathematical theory of non-uniform gases | 1953 | Journal of the Frankli... | 7.7K | ✕ |
| 2 | A mechanism of magnetic hysteresis in heterogeneous alloys | 1948 | Philosophical Transact... | 5.3K | ✕ |
| 3 | Exchange bias | 1999 | Journal of Magnetism a... | 4.6K | ✕ |
| 4 | Magnetization of High-Field Superconductors | 1964 | Reviews of Modern Physics | 4.3K | ✕ |
| 5 | Field Dependence of the Intrinsic Domain Magnetization of a Fe... | 1940 | Physical Review | 3.9K | ✕ |
| 6 | Beitrag zur Theorie des Ferromagnetismus | 1925 | Zeitschrift für Physik | 3.7K | ✕ |
| 7 | Resistance Minimum in Dilute Magnetic Alloys | 1964 | Progress of Theoretica... | 3.6K | ✓ |
| 8 | The design and verification of MuMax3 | 2014 | AIP Advances | 3.5K | ✓ |
| 9 | Oscillations in exchange coupling and magnetoresistance in met... | 1990 | Physical Review Letters | 2.7K | ✕ |
| 10 | A Theory of Metallic Ferro- and Antiferromagnetism on Zener's ... | 1956 | Progress of Theoretica... | 2.7K | ✓ |
Frequently Asked Questions
What is the Stoner-Wohlfarth model of magnetic hysteresis?
The Stoner-Wohlfarth model, presented in 'A mechanism of magnetic hysteresis in heterogeneous alloys' by Edmund C. Stoner and E.P. Wohlfarth (1948), addresses limitations of the Becker-Kersten treatment by accounting for higher coercivities in permanent magnet alloys. It suggests domain boundary movements in ferromagnetic materials with heterogeneous structures. This model interprets magnetization curves in alloys used for magnets.
How does exchange bias function in magnetic materials?
"Exchange bias" by J. Nogués and Iván K. Schuller (1999) describes a phenomenon shifting the hysteresis loop in ferromagnetic-antiferromagnetic bilayers. It arises from interfacial exchange coupling, leading to unidirectional anisotropy. This effect is applied in spin-valve sensors and magnetic storage devices.
What are core losses in electrical steels?
Core losses in electrical steels result from magnetostriction and hysteresis under alternating fields. These losses contribute to energy inefficiency in transformers. Magnetostrictive materials like Fe-Ga alloys help model and mitigate such losses.
What is Galfenol and its role in applications?
Galfenol refers to Fe-Ga alloys with magnetostrictive properties for sensors and actuators. These alloys exhibit coupled magnetic and mechanical behavior under thermal conditions. Applications include vibration control and energy harvesting devices.
How does MuMax3 simulate magnetic properties?
"The design and verification of MuMax3" by Arne Vansteenkiste et al. (2014) introduces a GPU-accelerated micromagnetic simulation program. It solves time- and space-dependent magnetization evolution using finite-difference discretization. MuMax3 enables simulations of nano- to micro-scale magnets.
Open Research Questions
- ? How can hysteresis models be refined to predict core losses in Fe-Ga alloys under combined mechanical and thermal stresses?
- ? What mechanisms limit magnetostriction in Galfenol alloys at high frequencies?
- ? How does domain wall motion in heterogeneous alloys influence transformer inrush currents?
- ? What are the precise conditions for optimizing exchange bias in multilayer magnetic structures?
Recent Trends
The field maintains 75,645 papers with no specified 5-year growth rate.
Established models like Stoner-Wohlfarth (1948, 5286 citations) and exchange bias (1999, 4564 citations) continue to underpin research.
No recent preprints or news coverage indicate steady reliance on foundational works.
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