Results 51 to 60 of about 190,473 (189)

Crystal Distortion and the Two-Channel Kondo Effect

, 1998
We study a simple model of the two-channel Kondo effect in a distorted crystal. This model is then used to investigate the interplay of the Kondo and Jahn-Teller effects, and also the Kondo effect in an impure crystal.
A O Gogolin, Abragam A, C N Hind, Gogolin A O, Gogolin A O, Grant W J C, Hirst L L, Nozières Ph, Sturge M D, von Delft J   +9 more
core   +1 more source

Kondo-transport spectroscopy of single molecule magnets

, 2006
We demonstrate that in a single molecule magnet (SMM) strongly coupled to electrodes the Kondo effect involves all magnetic excitations. This Kondo effect is induced by the quantum tunneling of the magnetic moment (QTM).
C. Romeike, H. Schoeller, L. I. Glazman, M. R. Wegewijs, W. Hofstetter   +4 more
core   +1 more source

Hybridization of an s-wave impurity with graphene lattice

Communications in Physics
Hybridization function is a quantity characterizing electron hoppings between an impurity and a host material in which the impurity resides, a full understandinging of it is crucial for studying correlation effects in various impurity problems.
Hoa Nghiem, Lam Pham, Linh Nguyen, Hùng Thế Đặng   +3 more
doaj   +1 more source

Self-Doping and the Mott-Kondo Scenario for Infinite-Layer Nickelate Superconductors

Frontiers in Physics, 2022
We give a brief review of the Mott-Kondo scenario and its consequence in the recently-discovered infinite-layer nickelate superconductors. We argue that the parent state is a self-doped Mott insulator and propose an effective t- J-K model to account for ...
Yi-feng Yang, Yi-feng Yang, Yi-feng Yang, Guang-Ming Zhang, Guang-Ming Zhang   +4 more
doaj   +1 more source

Interaction of spin and vibrations in transport through single-molecule magnets

Beilstein Journal of Nanotechnology, 2011
We study electron transport through a single-molecule magnet (SMM) and the interplay of its anisotropic spin with quantized vibrational distortions of the molecule.
Falk May, Maarten R. Wegewijs, Walter Hofstetter   +2 more
doaj   +1 more source

The underscreened Kondo effect: a two S=1 impurity model

, 1997
The underscreened Kondo effect is studied within a model of two impurities S=1 interacting with the conduction band and via an interimpurity coupling $K\vec{S_1}.\vec{S_2}$. Using a mean-field treatment of the bosonized Hamiltonian, we show that there is
A. de Visser, A. de Visser, A. de Visser, A. Krimmel, A. M. Sengupta, A. M. Tsvelik, B. Coqblin, B. Coqblin, B. Coqblin, C. Geibel, C. Geibel, C. Sire, D. G. Clarke, D. M. Cragg, F. Steglich, G. Aeppli, G. E. Brodale, G. R. Stewart, G. Toulouse, G. Yuval, H. R. Ott, I. Affleck, I. Affleck, I. Affleck, J. Emery, J. Gan, J. Gan, J. O. Willis, J. Solyom, K. G. Wilson, Karyn Le Hur, L. Taillefer, L. Taillefer, M. Kyogaku, N. Andrei, P. Jordan, P. Nozières, P. Nozières, P. Schedtman, R. M. Fye, R. N. Kleiman, S. Doniach, S. M. Hayden, S. Sachdev, T. T. Palstra, V. A. Fateev, V. J. Emery, V. J. Emery, W. J. L. Buyers   +48 more
core   +2 more sources

Application of the S=1 underscreened Anderson lattice model to Kondo uranium and neptunium compounds

, 2010
Magnetic properties of uranium and neptunium compounds showing the coexistence of Kondo screening effect and ferromagnetic order are investigated within the Anderson lattice Hamiltonian with a two-fold degenerate $f$-level in each site, corresponding to $
A. C. Hewson, Acirete S. da Rosa Simões, B. Coqblin, C. Lacroix, Christopher Thomas, J. R. Iglesias, N. B. Perkins, S. Doniach   +7 more
core   +1 more source

Kondo Effect in Bosonic Spin Liquids [PDF]

Physical Review Letters, 2006
In a metal, a magnetic impurity is fully screened by the conduction electrons at low temperature. In contrast, impurity moments coupled to spin-1 bulk bosons, such as triplet excitations in paramagnets, are only partially screened, even at the bulk quantum critical point.
Serge, Florens, Lars, Fritz, Matthias, Vojta   +2 more
openaire   +2 more sources

Blocking transport resonances via Kondo many-body entanglement in quantum dots

Nature Communications, 2016
The many-body Kondo effect manifests in low-temperature Coulomb blockaded quantum dots as a zero-bias conductance peak, which arises due to charge-fluctuation-driven transport.
Michael Niklas, Sergey Smirnov, Davide Mantelli, Magdalena Margańska, Ngoc-Viet Nguyen, Wolfgang Wernsdorfer, Jean-Pierre Cleuziou, Milena Grifoni   +7 more
doaj   +1 more source

SU(4) and SU(2) Kondo Effects in Carbon Nanotube Quantum Dots

, 2007
We study the SU(4) Kondo effect in carbon nanotube quantum dots, where doubly degenerate orbitals form 4-electron ``shells''. The SU(4) Kondo behavior is investigated for one, two and three electrons in the topmost shell.
A. C. Hewson, A. Makarovski, A. Zhukov, D. V. Averin, G. Finkelstein, J. Liu, J. Schmid, L. P. Kouwenhoven, L. P. Kouwenhoven   +8 more
core   +1 more source