May 11, 2024
3 minute read
Magnetic materials are substances that exhibit magnetic properties, such as the ability to attract or repel other magnets and to produce a magnetic field. These materials are used in a wide variety of applications, including motors, generators, transformers, and magnetic resonance imaging (MRI) machines.
History of Magnetic Materials
The earliest known magnetic material is magnetite, which was first discovered in Greece over 2,000 years ago. Magnetite was used by the Greeks and Romans to create compasses, which were used for navigation. In the 16th century, scientists began to study the magnetic properties of other materials, such as iron, nickel, and cobalt. In the 19th century, the development of electromagnets led to the invention of electric motors and generators, which revolutionized the way that we use energy.
Types of Magnetic Materials
There are two main types of magnetic materials: ferromagnetic and paramagnetic. Ferromagnetic materials are strongly attracted to magnets and can be magnetized even when they are not in a magnetic field. Paramagnetic materials are weakly attracted to magnets and can only be magnetized when they are in a magnetic field.
- Ferromagnetic materials include iron, nickel, cobalt, and some rare-earth metals.
- Paramagnetic materials include aluminum, magnesium, and titanium.
Applications of Magnetic Materials
Magnetic materials are used in a wide variety of applications, including:
- Electric motors and generators: Magnetic materials are used to create the magnetic fields that are necessary for the operation of electric motors and generators.
- Transformers: Magnetic materials are used to transfer electrical energy from one circuit to another.
- Magnetic resonance imaging (MRI) machines: Magnetic materials are used to create the magnetic fields that are necessary for MRI machines.
- Magnetic recording media: Magnetic materials are used to store data on magnetic tape and hard disk drives.
Career Opportunities
There are many career opportunities available for people who study magnetic materials. These careers include:
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Reading list
We've selected 11 books
that we think will supplement your
learning. Use these to
develop background knowledge, enrich your coursework, and gain a
deeper understanding of the topics covered in
Magnetic Materials.
This comprehensive handbook covers all aspects of magnetic materials, including their properties, synthesis, characterization, and applications. It valuable resource for researchers and engineers in the field of magnetism and materials science.
Provides a comprehensive overview of magnetic materials, including their properties, applications, and theoretical models. It is written by a leading expert in the field.
Provides a comprehensive overview of spintronics, including its principles, materials, and applications.
Provides a theoretical and computational approach to the study of magnetism in condensed matter, covering topics such as exchange interactions, spin waves, and magnetic excitations. It is suitable for graduate students and researchers with a background in solid-state physics.
Classic work on the magnetic properties of matter, providing a comprehensive overview of the field as of the mid-20th century. It valuable historical resource for researchers and historians of science.
Provides an introduction to the macroscopic properties of magnetic materials. It covers topics such as the classification of magnetic materials, the origin of magnetism, and magnetic measurements.
Focuses on the fabrication and characterization of magnetic nanostructures, discussing their properties and potential applications in various fields such as spintronics and biomedicine. It is suitable for graduate students and researchers in the field of nanotechnology and magnetism.
Provides a comprehensive overview of molecular magnetism, covering the synthesis, characterization, and applications of magnetic molecules. It is suitable for graduate students and researchers in the field of inorganic chemistry and molecular magnetism.
Provides a concise and accessible introduction to the basic principles of magnetism, suitable for undergraduate students and general readers with an interest in the topic.
Focuses on the magnetic materials used in energy applications, discussing their properties, design, and performance. It is suitable for engineers and researchers working in the field of energy storage and conversion.
Provides a practical overview of magnetic materials and their applications in various technologies, such as motors, generators, and magnetic recording devices. It is suitable for engineers and researchers working in the field of electrical engineering and materials science.
For more information about how these books relate to this course, visit:
OpenCourser.com/topic/v5wf5h/magnetic
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