Ground-State Properties of Extended Two-Channel Kondo Model
نویسندگان
چکیده
منابع مشابه
Unusual ground-state properties of the Kondo-lattice compound Yb2Ir3Ge5
We report sample preparation, structure, electrical resistivity, magnetic susceptibility and heat capacity studies of a new compound Yb2Ir3Ge5. We find that this compound crystallizes in an orthorhombic structure with a space group PMMN unlike the compound Ce2Ir3Ge5 which crystallizes in the tetragonal IBAM (U2Co3Si5 type) structure. Our resistivity measurements indicate that the compound Yb2Ir...
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...
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 کاملSolution of two channel spin - flavor Kondo model
We investigate a model where an impurity couples to both the spin and the flavor currents of the two channel conduction electrons. This model can be used as a prototype model of a magnetic impurity tunneling between two sites in a metal and of some heavy fermion systems where the ground state of the impurity has a fourfold degeneracy. The system is shown to flow to a doubly degenerate non fermi...
متن کاملFinite-temperature properties of the two-dimensional Kondo lattice model
Using the recently developed Lanczos technique we study finite-temperature properties of the 2D Kondo lattice model at various fillings of the conduction band. At half filling the quasiparticle gap governs physical properties of the chemical potential and the charge susceptibility at small temperatures. In the intermediate coupling regime quasiparticle gap scales approximately linearly with the...
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: Journal of the Physical Society of Japan
سال: 1998
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsj.67.61