[Pw_forum] Interpretation of the electron phonon results.

Elio Physics elio-physics at live.com
Mon Oct 6 07:11:33 CEST 2014


Hello all,
I have calculated the electron phonon interaction of a system I am working on and got the following results:
 Electron-phonon coupling constant, lambda
 Broadening   0.0050 lambda       0.0004 dos(Ef)  0.0038 Broadening   0.0100 lambda       0.0630 dos(Ef)  0.5291 Broadening   0.0150 lambda       0.1143 dos(Ef)  1.0535 Broadening   0.0200 lambda       0.1077 dos(Ef)  1.4146 Broadening   0.0250 lambda       0.0919 dos(Ef)  1.8217 Broadening   0.0300 lambda       0.0860 dos(Ef)  2.2762 Broadening   0.0350 lambda       0.0911 dos(Ef)  2.7504 Broadening   0.0400 lambda       0.1039 dos(Ef)  3.2086 Broadening   0.0450 lambda       0.1203 dos(Ef)  3.6247 Broadening   0.0500 lambda       0.1368 dos(Ef)  3.9875
I do not really understand how to interpret these results. Do we need to choose only one of those broadening values or should the value of lambda be the same for all of the broadening values, i.e convergence?.....Is there any document or (maybe paper) which can actually help me to understand these numbers. Your help is highly appreciated.

Thanks in advance
ElioUniversity of RondonioBrazil  		 	   		  
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