Identification of Raman peaks of high-Tc cuprates in normal state through density of states
作者： K.C. Bishoyi , G.C. Rout , S.N. Behera
DOI: 10.1016/J.PHYSB.2007.02.021
关键词: Quasiparticle 、 Phonon 、 Raman spectroscopy 、 Cuprate 、 Wave vector 、 Physics 、 Density of states 、 Microscopic theory 、 Electronic structure 、 Condensed matter physics
摘要: Abstract We present a microscopic theory to explain and identify the Raman spectral peaks of high- T c cuprates R 2 - x M CuO 4 in normal state. used electronic Hamiltonian prescribed by Fulde presence anti-ferromagnetism. Phonon interaction hybridization between conduction electrons system f-electrons has been incorporated calculation. The phonon density is calculated Green's function technique Zubarev at zero wave vector finite (room) temperature limit. four active ( P 1 – ) representing states atomic sub-systems cuprate are identified quasi-particle energy bands electron (DOS). effect interactions on these also explained.
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