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Indian Institute of Science Education and Research Berhampur
PHY 639: Magnetic Materials Fundamentals and Applications
Magnetostatics; Introduction, Magnetic poles, Magnetic moment, Magnetic dipoles,Magnetic effects of currents,Magnetization curves and hysteresis loops.
Experimental methods: Field production, Measurement of field strength, Instruments for measuring Magnetization.
Types of magnetism: Diamagnetism and paramagnetism, Ferromagnetism, Antiferromagnetism, Ferrimagnetism.
Magnetic domains: Domain wall structure, Domain wall motion, Magnetization by rotation, Effect of plastic deformation.
Magnetic anisotropy: Anisotropy in cubic crystals, Anisotropy in hexagonal crystals, Shape anisotropy.
Nanostructured Magnetic materials: Amorphous magnets, Single domain versus multidomain behavior, Coercivity of fine particles, Superparamagnetism, Magnetic thin films.
Types of magnetic materials: Soft magnetic materials, Amorphous and nanocrystalline soft magnetic materials, Hard magnetic materials and their applications.
Magnetic materials for applications: Applications of soft and hard magnetic materials,magnetocaloric materials and systems. Magnetic data storage, spin electronics, magnonics.
Magnet-polymer composites for sensing, actuation and self-healing.
References:
- Magnetism and Magnetic Materials by J. M. D. Coey, Cambridge University Press, 2010, Cambridge , UK
- Introduction to Magnetic Materials by B. D. Cullity & C.D. Graham, 2nd ed, Wiley international, 2009, Hoboken, NJD. Jiles,
- Introduction to magnetism and magnetic materials by Jiles, Taylor and Francis, CRC Press 1998.
- Magnetism in Condensed Matter by Stephen Blundell, Oxford University Press (2001).
Prerequisites:
- Condensed matter physics, Thermal Physics, Statistical mechanics, Quantum Physics
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