Atomic Physics provides a concise treatment of atomic physics and a basis to prepare for work in other disciplines that are underpinned by atomic physics such as chemistry, biology and several aspects of engineering science. The focus is mainly on atomic structure since this is what is primarily responsible for the physical properties of atoms.
After a brief introduction to some basic concepts, the perturbation theory approach follows the hierarchy of interactions starting with the largest. The other interactions of spin, and angular momentum of the outermost electrons with each other, the nucleus and external magnetic fields are treated in order of descending strength. A spectroscopic perspective is generally taken by relating the observations of atomic radiation emitted or absorbed to the internal energy levels involved. X-ray spectra are then discussed in relation to the energy levels of the innermost electrons. Finally, a brief description is given of some modern, laser based, spectroscopic methods for the high resolution study of the nest details of atomic structure.
Author(s): Paul Ewart
Series: IOP Concise Physics
Publisher: IOP Publishing
Year: 2019
Language: English
Pages: 100
City: Bristol
PRELIMS.pdf
Preface
Acknowledgements
Author biography
Paul Ewart
CH001.pdf
Chapter 1 Introduction
CH002.pdf
Chapter 2 Radiation and atoms
2.1 Width and shape of spectral lines
2.1.1 Lifetime broadening
2.1.2 Collision or pressure broadening
2.1.3 Doppler broadening
2.2 Atomic orders of magnitude
2.2.1 Other important atomic quantities
2.3 The central field approximation
2.4 The form of the central field
2.5 Finding the central field
CH003.pdf
Chapter 3 The central field approximation
3.1 The physics of the wave functions
3.1.1 Energy
3.1.2 Angular momentum
3.1.3 Radial wavefunctions
3.1.4 Parity
3.2 Multi-electron atoms
3.2.1 Electron configurations
3.2.2 The periodic table
3.3 Gross energy level structure of the alkalis: quantum defect
CH004.pdf
Chapter 4 Corrections to the central field: spin–orbit interaction
4.1 The physics of spin–orbit interaction
4.2 Finding the spin–orbit correction to the energy
4.2.1 The B-field due to orbital motion
4.2.2 The energy operator
4.2.3 The radial integral
4.2.4 The angular integral: degenerate perturbation theory
4.2.5 Degenerate perturbation theory and the vector model
4.2.6 Evaluation of 〈sˆ_·lˆ_〉 using DPT and the vector model
4.3 Spin–orbit interaction: summary
4.4 Spin–orbit splitting: alkali atoms
4.5 Spectroscopic notation
CH005.pdf
Chapter 5 Two-electron atoms: residual electrostatic effects and LS-coupling
5.1 Magnesium: gross structure
5.2 The electrostatic perturbation
5.3 Symmetry
5.4 Orbital effects on electrostatic interaction in LS-coupling
5.5 Spin–orbit effects in two-electron atoms
CH006.pdf
Chapter 6 Nuclear effects on atomic structure
6.1 Hyperfine structure
6.2 The magnetic field of electrons
6.3 Coupling of I and J
6.4 Finding the nuclear spin, I
6.5 Isotope effects
CH007.pdf
Chapter 7 Selection rules
7.1 Parity
7.2 Configuration
7.3 Angular momentum rules
CH008.pdf
Chapter 8 Atoms in magnetic fields
8.1 Weak field, no spin
8.2 Weak field with spin and orbit
8.2.1 Anomalous Zeeman pattern
8.2.2 Polarization of the radiation
8.3 Strong fields, spin and orbit
8.4 Intermediate fields
8.5 Magnetic field effects on hyperfine structure
8.5.1 Weak field
8.5.2 Strong field
CH009.pdf
Chapter 9 X-rays: transitions involving inner-shell electrons
9.1 X-ray spectra
9.2 X-ray series
9.3 Fine structure of x-ray spectra
9.4 X-ray absorption
9.5 Auger effect
CH010.pdf
Chapter 10 High-resolution laser spectroscopy
10.1 Absorption spectroscopy
10.2 Laser spectroscopy
10.2.1 ‘Doppler-free’ spectroscopy
10.2.2 Crossed beam spectroscopy
10.2.3 Saturation spectroscopy
10.2.4 Two-photon-spectroscopy
10.3 Calibration of Doppler-free spectra
10.4 Comparison of ‘Doppler-free’ methods
