Course Details
Subject {L-T-P / C} : PH5005 : Atomic and Molecular Physics { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Anil Kumar Singh
Syllabus
Review of atomic structure of H, atomic structure of two electron system, alkali system, Electron configurations and terms, equivalent and nonequivalent electrons, Hund's rules, Symmetric and antisymmetric wave functions, Slater determinants, constant field approximation , Hartree-Fock method , vector atom model , LS and jj couplings, Normal and Anomalous Zeeman effect, Stark effect. Born-Oppenheimer approximation, Spectra of diatomic molecule, polyatomic molecule. molecular spectra: rotational spectra, vibrational spectra, Electronic spectra, Raman effect, ESR spectroscopy, NMR Spectroscopy, LASER, modern experimental tools of spectroscopy.
Course Objectives
- Objective of this course is to learn atomic, molecular and spin resonance spectroscopy.
- Describe models for helium and multielectron atoms and their electronic spectra, and distinguish various angular momentum coupling schemes and their consequences.
- Describe models, Franck-Condon principle, and analyze consequences to explain electronic, rotational, and vibrational spectra of diatomic molecules, explain IR <br />spectroscopy.
- Describe and apply the models of polyatomic molecules to explain electronic, vibrational and rotational levels, classical and quantum theory of Raman effect and spectroscopy, <br />calculate parameters of interest.
Course Outcomes
Students will have achieved the ability to: <br />1. describe the atomic spectra of one and two valance electron atoms. <br />2. explain the change in behavior of atoms in external applied electric and magnetic field. <br />3. explain rotational, vibrational, electronic and Raman spectra of molecules. <br />4. describe electron spin and nuclear magnetic resonance spectroscopy and their applications.
Essential Reading
- H. E.White, Introduction to Atomic Spectra, McGraw-Hill Book Company INc. New York, 1934
- C. N. Banwell and E. M. McCash, Fundamentals of Molecular Spectroscopy, Tata McGraw-Hill Publishing Company limited, New Delhi, 2007
Supplementary Reading
- P. W. Atkin and R. S. Friedman, Molecular Quantum Mechanics, Oxford University Press, Indian Edition, 2004.
- B. H. Bransden, C. J. Joachain, Physics of Atoms and Molecule, Prentice Hall, 2003.