2013/2014

2014/2015

DM270

FIS/03 (MATERIAL PHYSICS)

DEPARTMENT OF PHYSICS

FISICA TEORICA

2°

2nd semester (02/03/2015 - 12/06/2015)

6

48 lesson hours

ITALIAN

ORAL TEST

GERACE DARIO (titolare) - 4 ECTS
GERACE DARIO (titolare) - 2 ECTS

Basic notions of quantum physics, electromagnetism, optics, solid-state physics. The course is held in the second semester, with attendance of ‘Solid State Physics I’ as a valuable prerequisite.

Learning of basic concepts and physical phenomena related to semiconductor nanostructures.

The course deals with semiconductor nanostructures, i.e., low-dimensional systems giving rise to quantum confinement effects for electrons and holes in one, two or three dimensions. The following subjects will be treated: First-principles calculations, band discontinuities. Heterostructures, envelope-function method. Two-dimensional systems: quantum wells, superlattices, hetero-interfaces. Absorption and emission, interband and intersubband transitions in quantum wells, semiconductor laser. Confined excitons and polaritons. Tunnelling and negative differential resistance, tunnelling diode, resonant tunnelling in double-barrier structures. Effects of electric and magnetic fields. Quantum Hall effect, integer and fractional. One- and zero-dimensional systems: quantum wires and quantum dots, electronic levels, transport and optical properties, correlation effects. Photonic confinement (semiconductor microcavities and photonic crystals, short mention).

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L.C. Andreani, Lecture notes (1998/1999).
P.Y. Yu, M. Cardona, Fundamentals of Semiconductors: Physics and Material Properties, 3rd edition (Springer, 2005). ).
J.H. Davies, The Physics of Low-dimensional Semiconductors: An Introduction (Cambridge University Press, 1998).

Oral examination. For the examination it is recommended to focus on physical aspects (qualitative trends, figures, methods for measuring various physical properties) rather than on a detailed study of mathematical derivations.

Oral examination. For the examination it is recommended to focus on physical aspects (qualitative trends, figures, methods for measuring various physical properties) rather than on a detailed study of mathematical derivations.