TY - JOUR
T1 - Kondo effect in a metal with correlated conduction electrons
T2 - Diagrammatic approach
AU - Neef, M.
AU - Tornow, S.
AU - Zwicknagl, G.
AU - Zevin, V.
PY - 2003/7/15
Y1 - 2003/7/15
N2 - We study the low-temperature behavior of a magnetic impurity which is weakly coupled to correlated conduction electrons. To account for conduction electron interactions a diagrammatic approach in the frame of the 1/N expansion is developed. The method allows us to study various consequences of the conduction electron correlations for the ground state and the low-energy excitations. We analyze the characteristic energy scale in the limit of weak conduction electron interactions. Results are reported for static properties (impurity valence, charge susceptibility, magnetic susceptibility, and specific heat) in the low-temperature limit.
AB - We study the low-temperature behavior of a magnetic impurity which is weakly coupled to correlated conduction electrons. To account for conduction electron interactions a diagrammatic approach in the frame of the 1/N expansion is developed. The method allows us to study various consequences of the conduction electron correlations for the ground state and the low-energy excitations. We analyze the characteristic energy scale in the limit of weak conduction electron interactions. Results are reported for static properties (impurity valence, charge susceptibility, magnetic susceptibility, and specific heat) in the low-temperature limit.
UR - http://www.scopus.com/inward/record.url?scp=85039025344&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.68.035114
DO - 10.1103/PhysRevB.68.035114
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AN - SCOPUS:85039025344
SN - 1098-0121
VL - 68
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 11
ER -