Atomic and Molecular Physics
Code
10527
Academic unit
Faculdade de Ciências e Tecnologia
Department
Departamento de Física
Credits
6.0
Teacher in charge
Paulo Manuel Assis Loureiro Limão Vieira
Weekly hours
5
Teaching language
Português
Objectives
The aim of the course is to provide students with a solid background in Atomic and Molecular Physics. After approval in this course, the students will be able to understand the technology which is the backbone of the instrumentation used currently in several fields of Physics, Chemistry, Biology and Medecine, which involve the interaction of particles/radiation with matter.
Prerequisites
Students are required to have a reasonable background on:
Classical Mechanics, Thermodynamics, Electromagnetism, Quantum Mechanics; Physical-Chemistry; Mathematics; English;
Subject matter
- Interactions – classical and quantum interpretation
Particles and radiation interactions with atoms and molecules; scattering by a central potential; elestic, inelastic and reactive cross sections; reaction velocity; Coulomb scattering and atomic structure.
- Hydrogen-like atoms
Review on the atomic model and the Schrödinger equation solution for the hydrogen; angular momentum; atoms in fields; radiative transitions; selection rules; Zeeman effect; spin.
- Many electrons atoms
Simetria e princípio de exclusão de Pauli; átomo de hélio; modelo do átomo em camadas; campo central e potencial resultante; acoplamentos L, S e j, j; raios-X e electrões de Auger; coeficientes de Einstein; introdução ao laser de He-Ne.
- Molecular structure
Molecules; different sets of bonding; Schrödinger equation for molecular systems; Born-Oppenheimer and adiabatic approximations; molecular states: vibrational, rotational and electronic; radiative and non-radiative transitions; molecular clusters; polyatomic molecules.
Laboratory
- Photoelectric Emission
- Electron Beam Diffraction
- Gas discharges
- Franck-Hertz experiment
- X-ray
- Mass spectrometry
- Electron Spin Resonance
Bibliography
- Physics of Atoms and Molecules – B. H. Bransden and C. J. Joachain, 2nd Ed., Prentice Hall, 2003
- Introduction to the Structure of Matter – J. J. Brehm and W. J. Mullin, Wiley, 1989
- Física Quântica – Eisberg e Resnick, Elsevier, 1979
- Atomic and Molecular Collisions – H. Massey, Taylor & Francis, 1979
- Molecular Quantum Mechanics – P. W. Atkins and R. S. Friedman, 3rd Ed., Oxford, 1997
- Modern Atomic Physics – B. Cagnac, J. C. Pebay-Peyroula, The Macillan Press, 1975
- Perspectives of Modern Physics – A. Beiser, McGraw-Hill Int. Ed., 1988
- Quantum States of Atoms. Molecules, and Solids – M. A. Morrison, T. L. Estle, N. F. Lane, Prentice Hall, 1976
- Physical Chemistry – P. W. Atkins, Oxford, 1990
Teaching method
The material will be presented in lectures, followed by discussion of applied problems. The students will have also laboratory work.
Evaluation method
The evaluation will be focused on the lectures delivered (T), problems'''''''' solving (TP) and demonstration labs (P) contributing to the final mark;
Attendace: each student will have to have at least 2/3 of the demonstration labs (P) which are not an evaluation moment and the mark (NP) higher than 10. All students that have had previous attendance in former years arte entitled to the attendance mark. They are allowed to attend the problems'''''''' solving lectures TP if there will be seats available.
EVALUATION:
Lectures: the mark (NT) is obtained through two exams (NT1 and NT2) or final exam (NE), where the final mark is obtained through:
NT=0,5 NT1 + 0,5 NT2
or
NT=NE
Problems'''''''' solving: the mark is obtained after successful handling of problems (NTP). Attendance is mandatory to problems'''' solving;
Lab demosntrations: the final mark is obtained through two evaluation moments weighting 50% of the evaluation and 50% of a formal report.
In order to be entitled "attendance" the mark has to be ≥ 10. The final mark in units is given by:
NF = 0,6 NT + 0,1 NTP + 0,3 NP
Fot those students with previous attendance, the final mark is obtained through:
NF = 0,6 NT + 0,4 NP