Subband properties of the strong coupling s—d model from the lowest six momenta |
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| Authors: | I Barvík V Čápek P Chvosta |
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| Institution: | Institute of Physics of the Charles University, 121 16 Prague, Czechoslovakia;Department of Mathematical Physics, Faculty of Mathematics and Physics, 160 00 Prague, Czechoslovakia |
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| Abstract: | The lowest six momenta of the spectral function of the single-band s—d model in the low electron-concentration limit are expressed in terms of spin correlation functions. Using them, nontrivial information on electron quasiparticle subbands in the strong scattering régime is deduced. The temperature dependence and overall form of the spectrum is discussed. Comparison with experiment on CdCr2Se4 is made. |
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