Electrically Controlling the Kondo Effect

11 The Kondo Effect

HOW THE KONDO EFFECT CAN EXIST IN Gd INTERMETALLIC COMPOUNDS

Based on the crystal and magnetic structural properties of some Gd intermetallic compounds, it is shown that with increasing conduction electron concentration, Gd experiences electronic and magnetic instability, and that these behaviors point to the appearance of Kondo Lattice. We suggest that the conduction electrons have gained local character. It is shown that Kondo effect should be observed...

Revival of the Kondo effect

33 WHY would anyone still want to study a physical phenomenon that was discovered in the 1930s, explained in the 1960s and has been the subject of numerous reviews since the 1970s? Although the Kondo effect is a well known and widely studied phenomenon in condensedmatter physics, it continues to capture the imagination of experimentalists and theorists alike. The effect arises from the interact...

The kondo effect in the unitary limit

We observe a strong Kondo effect in a semiconductor quantum dot when a small magnetic field is applied. The Coulomb blockade for electron tunneling is overcome completely by the Kondo effect, and the conductance reaches the unitary limit value. We compare the experimental Kondo temperature with the theoretical predictions for the spin- 12 Anderson impurity model. Excellent agreement is found th...

Renormalization Group Approaches to the Kondo Effect

Kodon effect was first introduced by Knondo in 1964 for explaining the extraordinary resistivity of metals with magnetic impurities: The resistivity ρ(T ) increases as temperature T goes to zero. This problem can be well understood by the method of the renormalization group. In this essay, the renormalization group is used to analyze the effective coupling of the impuity with the conduction ele...