000			01788 a2200241 4500
003			OSt
005			20211122155216.0
008			211122b xxu||||| |||| 00| 0 eng d
020			_a9789814800563
040			_cIIT Kanpur
041			_aeng
082			_a543.5 _bB769t
100			_aBrik, Mikhail G.
245			_aTheoretical spectroscopy of transition metal and rare earth ions _bfrom free state to crystal field _cMikhail G. Brik and Chong-Geng Ma
260			_bJenny Stanford _c2020 _aSingapore
300			_axiv, 446p
520			_aThis book describes in detail the main concepts of theoretical spectroscopy of transition metal and rare-earth ions. It shows how the energy levels of different electron configurations are formed and calculated for the ions in a free state and in crystals, how group theory can help in solving main spectroscopic problems, and how the modern DFT-based methods of calculations of electronic structure can be combined with the semi-empirical crystal field models. The style of presentation makes the book helpful for a wide audience ranging from graduate students to experienced researchers. The performance of optical materials crucially depends on the impurity ions intentionally introduced into the crystalline host materials. The color of these materials, their emission and absorption spectra can be understood by analyzing the relations between the electronic properties of impurity ions and host crystal structure, which constitutes the main content of this book. It describes in detail the main concepts of theoretical spectroscopy of transition metal and rare-earth ions.
650			_aRare earth ions -- Spectra
650			_aSpectrum analysis
650			_aTransition metals -- Spectra
700			_aMa, Chong-Geng
942			_cBK
999			_c564942 _d564942