S. Kagoshima, T. Ishiguro, et al.
Solid State Communications
A linked cluster theorem is demonstrated for the self-energy of the average Green function of one electron moving in a low concentration of randomly positioned spins. The self-energy differs from what has previously been assumed by a frequency-independent but temperature-dependent factor. © 1972.
S. Kagoshima, T. Ishiguro, et al.
Solid State Communications
P.C. Kwok, T.D. Schultz
Physical Review B
P.C. Kwok, T.D. Schultz
Journal of Physics C: Solid State Physics
D.C. Mattis, T.D. Schultz
Physical Review