CHEM-E5100 - Solid State Materials and Phenomena, 07.09.2020-21.10.2020
This course space end date is set to 21.10.2020 Search Courses: CHEM-E5100
Topic outline
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From here you can find the compensating essays if you missed a lecture; with these essays you learn some important concepts and you may compensate the points you missed from Activating Exercises (done during the lecture). These are just for compensating a missed lecture, not an extra task (and no extra points thus achieved).
Return an essay (appr. one A4) here, latest on Sunday 23:59pm on the week of the lecture in question
SUBMIT as PDF
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If you Missed Lecture 1: Write an one A4 essay about the topic:"Smart Materials in Sensors and Actuators". In your essay, define the term smart materials, give examples (and explain briefly) 2-3 smart material types and how they could be used as sensors or actuators.
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If You Missed Lecture 2: Explain: 1) Why Particle-in-a-box problem is important in solid-state physics, 2) what is Fermi energy, what is Fermi Function, 3) what are Bloch Functions and Forbidden/Allowed Energy Levels. The explanation of each: 1/2 of a page. No copying from Wikipedia, etc. - use your own words.
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If You Missed Lecture 3, make both i) and ii)
i) Explain Kronig-Penney model and how it leads to band theory (one A4)
ii) Explain Drude's model describing electrical conductivity (one A4).
No copying from Wikipedia, lecture slides etc. - use your own words.
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If You Missed Lecture 4:
Explain doping in semiconductors and how and why it affects the Fermi level. Use your own words (no copying from Wikipedia, slides, books etc.).
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If You Missed Lecture 5: Explain the following statement (a) and calculate question (b):
(a) We observe magnetism at macroscale but its origin is always quantum mechanical.
(b) Determine the ground state values of S, L, J for f3 ion Nd3+.
(Use your own words, no copying from Wikipedia, lecture slides etc.)
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If You Missed Lecture 6: Answer to both questions
(a) Why L orbital quencing takes place for transition metals and what does it mean in terms of atomic magnetic dipole moment?
(b) Explain what the terms exchange energy and double exchange mean.
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Explain why and how electrical and thermal conductivities are connected (about 1 page of text & equations, no copying from Wikipedia, slides etc. - use your own words).
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Explain with yoru own words and schematics:
(a) ferroelectricity due to polar groups or hydrogen bonding
(b) Electronic and ionic polarisablity of a material
(c) local field vs. applied field
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If You Missed Lecture 9: Explain with your own words (one A4) what is magnetostriction and what is the origin of it?
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If You Missed Lecture 10: Make the both (a) and (b)
(a) Explain with your own words why ionic polymer-metal composites bend in electric field (hint: osmotic pressure)
(b) Skecth and explain the following smart materials: i) conductive polymers and ii) magnetic shape memory alloys.
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