Mesoscopic physics: verschil tussen versies

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Heleen.dausy (overleg | bijdragen)
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Heleen.dausy (overleg | bijdragen)
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==Informatie over het examen==
==Information about the exam==
Mesoscopic physics is a given by professor Houssa. There is only a final exam, consisting of two questions. Mathematical detail is not required and the emphasis is more on the physical interpretation of the formulas discussed during the lectures.
Mesoscopic physics is a given by professor Houssa. There is only a final exam, consisting of two questions. Mathematical detail is not required and the emphasis is more on the physical interpretation of the formulas discussed during the lectures.



Versie van 14 jan 2019 09:58

Information about the exam

Mesoscopic physics is a given by professor Houssa. There is only a final exam, consisting of two questions. Mathematical detail is not required and the emphasis is more on the physical interpretation of the formulas discussed during the lectures.

Exam questions

14/01/2018

  • Question 1

Explain the occurrence of a metal-insulator transition in a disordered solid.

  • Question 2

Describe the Stoner criterion for magnetism. Use this criterion to explain the occurrence of a ferromagnetic order in 2D material, like e.g. hole-doped SnO monolayers.

Questions from earlier years

  • Explain why the Drude model breaks down in mesoscopic systems and describe with respect to characteristic length scales.
  • Explain the quantum Hall effect, the quantum spin Hall effect and topological insulators.
  • What is the Mott transition?
  • Explain the type of tunneling that happens in an Si/SiO2 interface.
  • What is resonant tunneling?
  • What is the Landau model?
  • How is a CNT conceptually formed, starting from a graphene sheet? What are the different types of CNT, based on their symmetry properties, and what is the implication on their transport properties? Oral questions: Dependence of SC CNTs Band Gap with its geometry. How to grow specific types of CNTs? Difference between Quantum Hall effect in Graphene and 2DEG? Difference regarding temperature?