منابع مشابه
Two-channel Kondo effect in glasslike ThAsSe.
We present low-temperature heat and charge transport as well as caloric properties of a ThAsSe single crystal. An extra -AT(1/2) term in the electrical resistivity, independent of magnetic fields as high as 14 T, provides evidence for an unusual scattering of conduction electrons. Additionally, both the thermal conductivity and the specific heat show a glass-type temperature dependence which si...
متن کاملTwo-channel Kondo physics in two-impurity Kondo models.
We consider the non-Fermi-liquid quantum critical state of the spin-S two-impurity Kondo model and its potential realization in a quantum dot device. Using conformal field theory and the numerical renormalization group, we show the critical point to be identical to that of the two-channel Kondo model with additional potential scattering, for any spin S. Distinct conductance signatures are shown...
متن کاملTwo-channel Kondo effect in a modified single electron transistor.
We suggest a simple system of two electron droplets which should display two-channel Kondo behavior at experimentally accessible temperatures. Stabilization of the two-channel Kondo fixed point requires fine control of the electrochemical potential in each droplet, which can be achieved by adjusting voltages on nearby gate electrodes. We study the conditions for obtaining this type of two-chann...
متن کاملSuperconductivity Due to Co-operative Kondo Effect in Pu 115's
We outline key elements of a theory that accounts for anomalous properties of the PuCoGa5 and PuRhGa5 compounds as a consequence of a two-body interference between two Kondo screening channels. Virtual valence fluctuations of the magnetic Pu configurations create two conduction channels of different symmetry. Using the symplectic-large N approach, we are able to demonstrate our pairing mechanis...
متن کاملOn two channel flavor anisotropic Kondo model
Using Abelian Bosonization and Conformal Field Theory, we reinvestigate the two channel flavor anisotropic Kondo model where the two conduction electron channels couple to the impurity spin with different strength. All the possible fixed points of this model have been identified. It is shown that there is only one non-fermi liquid fixed point which is the two channel Kondo fixed point. The syst...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 1998
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/10/15/002