{"product_id":"9783642464355","title":"Light and Matter Id \/ Licht und Materie Id: Infrared and Raman Spectra of Non-Metals","description":"\u003ch1\u003eLight and Matter Id \/ Licht und Materie Id: Infrared and Raman Spectra of Non-Metals\u003c\/h1\u003e \u003ch2\u003eBilz, H.; Genzel, L.; Strauch, D.; Wehner, R.K.\u003c\/h2\u003e \u003cp\u003eThe dynamical properties of solids have recently attracted renewed interest in connection with the increasing understanding of phase transitions and re­ lated phenomena. In particular, soft modes or, more generally, phonon 'anom­ alies' seem to play an important role in structural and electronic phase tran­ sitions, such as ferroelectric or superconducting transitions. The understanding of the mechanisms responsible for the occurrence of unusually low frequencies in phonon spectra requires a detailed analysis of the microscopic forces governing the lattice vibrations. Of particular importance is the influence of the electron­ lattice interaction in the adiabatic approximation which in many cases is the origin of peculiarities in the phonon self-energy. In this work the vibrational spectra of pure non-metals and of those con­ taining point defects are investigated. ' In these materials the interrelation be­ tween the pseudo-harmonic forces (determining the phonon dispersion re­ lations) and the non-linear anharmonic and electron-phonon forces (as they act in infrared and Raman spectra) is most obvious and can be quantitatively analysed in terms of appropriate models. The main task is to arrive at a physically correct treatment of electronic degrees of freedom, as for example in an electronic 'shell' model, which leads to the description of phonon spectra in terms of long-range polarizabilities and short-range deformabilities. The pur­ pose of our review is to stimulate further investigations which, we hope, will result in explicit relations between the parameters of the semi-microscopic models and the matrix elements from the electronic band structure.\u003c\/p\u003e \u003ch3\u003eDetails\u003c\/h3\u003e \u003cp\u003ePublished by: Springer\u003c\/p\u003e \u003cp\u003ePublication Date: 2012-03-10\u003c\/p\u003e \u003cp\u003eFormat: Paperback\u003c\/p\u003e \u003cp\u003eISBN-13: 9783642464355\u003c\/p\u003e \u003cp\u003eDOI: 10.1007\/978-3-642-46433-1\u003c\/p\u003e \u003cp\u003eDimensions: 244.0cm x170.0cm\u003c\/p\u003e \u003cp\u003ePages: 602.0\u003c\/p\u003e ","brand":"Springer Berlin Heidelberg","offers":[{"title":"Default Title","offer_id":44422495371404,"sku":"9783642464355","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9545\/1788\/files\/9783642464355.jpg?v=1756267683","url":"https:\/\/fh90cf-fv.myshopify.com\/products\/9783642464355","provider":"Late Knight Books and Services, LLC","version":"1.0","type":"link"}