scholarly journals From Kondo Effect to Fermi Liquid

2005 ◽  
Vol 74 (1) ◽  
pp. 155-166 ◽  
Author(s):  
Hiroshi Kontani ◽  
Kosaku Yamada
Keyword(s):  
Fermi Liquid ◽  
Kondo Effect

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.

Stability of Non-Fermi Liquid in Kondo Effect due to (5f)2Configuration

1997 ◽  
Vol 66 (5) ◽  
pp. 1485-1494 ◽  
Author(s):  
Mikito Koga ◽  
Hiroyuki Shiba
Keyword(s):  
Fermi Liquid ◽  
Kondo Effect

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.

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