scholarly journals Orbital Kondo-Effect From Tunneling Impurities

1997 ◽  
Vol 11 (24) ◽  
pp. 2855-2899 ◽  
Author(s):  
G. Zaránd ◽  
K. Vladár
Keyword(s):  
Renormalization Group ◽  
Fermi Liquid ◽  
Kondo Effect ◽  
Experimental Situation ◽  
Low Energy ◽  
Liquid Behavior ◽  
Tunneling Centers ◽  
Energy Physics ◽  
Fermi Liquid Behavior

The article reviews recent results for the low energy physics of fast tunneling centers in metallic environments. For strong enough couplings to the environment these tunneling centers display an orbital Kondo effect and give rise to a non-Fermi-liquid behavior. This latter property is explained by establishing a mapping of the tunneling center model to the multichannel Kondo model via the renormalization group transformation combined with a 1/Nf expansion. The case of M-state systems, the role of the splittings and the present experimental situation are also discussed.

scholarly journals Non-Fermi-liquid behavior from two-dimensional antiferromagnetic fluctuations: A renormalization-group and large-Nanalysis

2004 ◽  
Vol 69 (5) ◽  
Author(s):  
Sergey Pankov ◽  
Serge Florens ◽  
Antoine Georges ◽  
Gabriel Kotliar ◽  
Subir Sachdev
Keyword(s):  
Renormalization Group ◽  
Fermi Liquid ◽  
Two Dimensional ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

TRANSPORT PROPERTIES OF ELECTRON-DOPED La2−xCexCuO4 THIN FILM IN THE UNDER-DOPED REGION

2007 ◽  
Vol 21 (18n19) ◽  
pp. 3258-3261
Author(s):  
J. YUAN ◽  
H. WU ◽  
L. ZHAO ◽  
K. JIN ◽  
B. XU ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Transport Properties ◽  
Fermi Liquid ◽  
Kondo Effect ◽  
Two Dimensional ◽  
Optimal Doping ◽  
Semiconductor Behavior ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

Underdoped electron-doped La 2-x Ce x CuO 4 ( x =0.06-0.09) thin films were successfully grown and investigated for the transport properties in ab-plane. It was found that the in-plane resistivity ρab shows a semiconductor behavior when x =0.06, with increasing the Ce concentration to the optimal doping level, it changes to the two dimensional Fermi-liquid behavior. In the films with x≥0.08, a Kondo effect like scattering is observed in the low temperature range.

INTERACTING FERMIONS, SCALING AND POSSIBLE DEPARTURE FROM FERMI LIQUID BEHAVIOR

1995 ◽  
Vol 09 (25) ◽  
pp. 1657-1664 ◽  
Author(s):  
RANJAN CHAUDHURY ◽  
DEBASHIS GANGOPADHYAY
Keyword(s):  
Fermi Liquid ◽  
Two Dimensions ◽  
Low Energy ◽  
Energy Limit ◽  
Realistic Interaction ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

We study fermionic models with realistic interaction in the low energy limit by scaling energies. We show that there exist possibilities for a departure from the Fermi liquid picture in two dimensions.

Low-energy restoration of Fermi-liquid behavior for two-channel Kondo scattering

1997 ◽  
Vol 56 (19) ◽  
pp. 12033-12037 ◽  
Author(s):  
Shashi K. Upadhyay ◽  
Richard N. Louie ◽  
R. A. Buhrman
Keyword(s):  
Fermi Liquid ◽  
Low Energy ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

Role of electron-magnon interaction in non-Fermi liquid behavior of SrRuO3

2019 ◽  
Vol 31 (12) ◽  
pp. 125602 ◽  
Author(s):  
G D Dwivedi ◽  
S J Sun ◽  
Y K Kuo ◽  
H Chou
Keyword(s):  
Fermi Liquid ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior
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