Strong-Coupling Resistivity in the Kondo Model
نویسندگان
چکیده
منابع مشابه
0 Strong Coupling Approach to the Supersymmetric Kondo Model
We carry out the strong coupling expansion for the SU (N) Kondo model where the impurity spin is represented by a L-shaped Young tableau. Using second order perturbation theory around the strong coupling fixed point it is shown that when the antisymmetric component of the Young-tableau contains more than N/2 entries, the strong-coupling fixed point becomes unstable to a two-stage Kondo effect. ...
متن کاملStrong Coupling Approach to the Supersymmetric Kondo Model
We carry out the strong coupling expansion for the SU (N) Kondo model where the impurity spin is represented by a L-shaped Young tableau. Using second order perturbation theory around the strong coupling fixed point it is shown that when the antisymmetric component of the Young-tableau contains more than N/2 entries, the strong-coupling fixed point becomes unstable to a two-stage Kondo effect. ...
متن کاملThe Kondo lattice model from strong-coupling viewpoint
We study the magnetic excitation spectrum of the two-dimensional (2D) squarelattice S=1/2 Kondo lattice model at finite (hole) doping, by representing the Hamiltonian in terms of a set of local excitations. The location of the paramagneticantiferromagnetic phase boundary at T=0 is determined.
متن کاملFrom Kondo Model and Strong Coupling Lattice Qcd to the Isgur-wise Function
Isgur-Wise functions parametrise the leading behaviour of weak decay form factors of mesons and baryons containing a single heavy quark. The form factors for the quark mass operator are calculated in strong coupling lattice QCD, and Isgur-Wise functions extracted from them. Based on renormalisation group invariance of the operators involved, it is argued that the Isgur-Wise functions would be t...
متن کاملKondo-model for quantum-dots with spin-orbit coupling
Cotunneling through a spin-orbit coupled quantum dot Starting from the Anderson model for a quantum dot, with Rashba type spinorbit (SO) interactions, coupled to two metallic electrodes, we derive an effective low-energy Hamiltonian describing the dynamical spin-fluctuations, i.e. the cotunneling processes, which remain in the Coulomb blockade regime. This projection to the low-energy states of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1999
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.82.4540