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Lecturer(s)
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Berka Karel, doc. RNDr. Ph.D.
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Prucek Robert, doc. RNDr. Ph.D.
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Nemec Ivan, doc. Ing. Ph.D.
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Course content
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1. Introduction to magnetism of solids (magnetic moment, classical and quantum mechanics of spin), magnetic susceptibility, diamagnetism, paramagnetism, crystal field, magnetic interactions among magnetic moments (magnetic dipolar interactions, origin of exchange interactions, direct, indirect, double and anisotropic exchange interactions) 2. Ordering of magnetic moments (ferromagnetism, antiferromagnetism, ferrimagnetism, helimagnetism and spin glasses), magnetic domains and Bloch walls (domain formation, magnetization processes, observation of magnetic domains). 3. Nanomagnetism: single-domain magnetic structures (qualitative and quantitative description, Stoner-Wohlfarth model), superparamagnetism, surface and finite size effects, spin canting, quantum phase transitions, thin films and multilayer systems. 4. Magnetoresistance (anisotropic, exchange and colossal magnetoresistance, quantum Hall effect). 5. "Candidates" of nanostructures - Iron oxides and perovskites. 6. Frustration and spin glasses - topographic and magnetic frustration, qualitative description, conditions for frustrations, spin glasses (randomness of magnetic interactions, amorphous magnets, detection of spin glasses). 7. Applications of magnetic (nano)materials in various technological, medical, and environmental fields.
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Learning activities and teaching methods
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Monologic Lecture(Interpretation, Training)
- Homework for Teaching
- 20 hours per semester
- Preparation for the Exam
- 40 hours per semester
- Attendace
- 26 hours per semester
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Learning outcomes
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The aim of the lecture is to transfer to the students the current knowledge concening magnetism in solids and magentic properties of materials and their measurements, and familiarize the students with magnetic phenomena occurring in the nanoworld and application potential of magnetic (nano)materials.
Define basic terms in the field of magnetism of solids, describe main approaches when studying magnetic properties of (nano)materials, demonstrate the understanding of various issues and apply the acquired knowledge for solution of model problems.
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Prerequisites
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unspecified
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Assessment methods and criteria
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Mark
Class attendance. Knowledge of the course topics, ability to discuss about the course topics in wider contexts.
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Recommended literature
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Awschalom, D. D.; Buhrman, R. A.; Daughton, J. M.; von Molnar, S.; Roukes, M. L. (2004). Spin Electronics. Kluwer Academic Publisher, Dordrecht.
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Blundell, S. (2003). Magnetism in Condensed Matter. Oxford University Press.
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Borisenko, V.E., Ossicini, S. (2004). What is What in the Nanoworld. A Handbook of Nanoscience and Nanotechnology. Wiley-VCh, Verlag GmbH & Co. KGaA, Weinhein.
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Craik, D. J. (1995). Magnetism: Principles and Applications. Wiley.
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Dormann, J.L., Fiorani, D., Tronc, E. (1997). Magnetic Relaxation in Fine-Particle Systems, in Advances in Chemical Physics. edited by I. Prigogine and S. A. Rice, John Wiley, New York, Vol.98, p.283.
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Jiles, D. (1997). Introduction to Magnetism and Magnetic Materials, Second Edition. Chapman & Hall, London.
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Mydosh, J. A. (1993). Spin Glasses: An Experimental Introduction. Taylor & Francis, London.
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O'Handley, R. C. (1999). Modern Magnetic Materials: Principles and Applications. John Wiley & Sons, New York.
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Poole, Ch.P., Owens, F.J. (2003). Introduction to Nanotechnology. John Wiley & Sons, New Jersey.
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