Enhancement of the Kondo temperature of magnetic impurities in metallic point contacts due to the fluctuations of the local density of states
G. Zarand L. Udvardi
Abstract
The effect of local density of states (LDOS) fluctuations on the dynamics of a Kondo impurities in a small metallic point contact (PC) is studied. To estimate the spatial and energy dependent LDOS fluctuations we investigate a model PC by means of a transfer matrix formalism. For small PC's in the nanometer scale we find that near to the orifice strong LDOS fluctuations develop. These fluctuations may shift the Kondo temperature by several orders of magnitude, and result in a strong broadening of the PC Kondo peak in agreement with the results of recent measurements.
Create a lesson
Related papers
Knots in Condensed Matters
Y. M. Cho
Bouchaud's model exhibits two different aging regimes in dimension one
Gerard Ben Arous, Jiri Cerny
Periodic diffraction patterns for 1D quasicrystals
Pawel Buczek, Lorenzo Sadun, Janusz Wolny
Adiabatic association of ultracold molecules via magnetic field tunable interactions
Krzysztof Goral, Thorsten Koehler, Simon A. Gardiner et al.
High-Temperature Atomic Superfluidity in Lattice Boson-Fermion Mixtures
F. Illuminati, A. Albus
Constructive Methods of Invariant Manifolds for Kinetic Problems
A. N. Gorban, I. V. Karlin, A. Yu. Zinovyev