Frequency and temperature dependence of the transport relaxation rate of the Kondo alloyU0.2Y0.8Pd3: Evidence for non-Fermi-liquid behavior

1995 ◽  
Vol 52 (1) ◽  
pp. 42-45 ◽  
Author(s):  
L. Degiorgi ◽  
H. R. Ott ◽  
F. Hulliger
Keyword(s):  
Temperature Dependence ◽  
Relaxation Rate ◽  
Fermi Liquid ◽  
Liquid Behavior ◽  
Transport Relaxation ◽  
Fermi Liquid Behavior

scholarly journals Hidden non-Fermi liquid behavior caused by magnetic phase transition in Ni-doped Ba-122 pnictides

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Seokbae Lee ◽  
Ki-Young Choi ◽  
Eilho Jung ◽  
Seulki Roh ◽  
Soohyeon Shin ◽  
...  
Keyword(s):  
Phase Transition ◽  
Temperature Dependence ◽  
Magnetic Phase Transition ◽  
Fermi Liquid ◽  
Magnetic Phase ◽  
Linear Temperature Dependence ◽  
Scattering Rate ◽  
Underdoped Sample ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

Abstract We studied two BaFe2−x Ni x As2 (Ni-doped Ba-122) single crystals at two different doping levels (underdoped and optimally doped) using an optical spectroscopic technique. The underdoped sample shows a magnetic phase transition around 80 K. We analyze the data with a Drude-Lorentz model with two Drude components (D1 and D2). It is known that the narrow D1 component originates from electron carriers in the electron-pockets and the broad D2 mode is from hole carriers in the hole-pockets. While the plasma frequencies of both Drude components and the static scattering rate of the broad D2 component show negligible temperature dependencies, the static scattering rate of the D1 mode shows strong temperature dependence for the both samples. We observed a hidden quasi-linear temperature dependence in the scattering rate of the D1 mode above and below the magnetic transition temperature while in the optimally doped sample the scattering rate shows a more quadratic temperature dependence. The hidden non-Fermi liquid behavior in the underdoped sample seems to be related to the magnetic phase of the material.

Possible Fermi liquid behavior of 5f electrons in UPt3 at T⪢TK

1990 ◽  
Vol 163 (1-3) ◽  
pp. 167-168 ◽  
Author(s):  
A.J. Arko ◽  
P. Armstrong ◽  
M. Wire
Keyword(s):  
Fermi Liquid ◽  
Liquid Behavior ◽  
5F Electrons ◽  
Fermi Liquid Behavior

scholarly journals Non-Fermi-Liquid Behavior in Metallic Quasicrystals with Local Magnetic Moments

2015 ◽  
Vol 115 (3) ◽  
Author(s):  
Eric C. Andrade ◽  
Anuradha Jagannathan ◽  
Eduardo Miranda ◽  
Matthias Vojta ◽  
Vladimir Dobrosavljević
Keyword(s):  
Fermi Liquid ◽  
Magnetic Moments ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

scholarly journals Crossover from Landau Fermi liquid to non-Fermi liquid behavior: Indications from Hall measurements on CeCoIn5

2007 ◽  
Vol 460-462 ◽  
pp. 678-679
Author(s):  
C. Capan ◽  
S. Singh ◽  
S. Nair ◽  
M. Nicklas ◽  
H. Lee ◽  
...  
Keyword(s):  
Fermi Liquid ◽  
Hall Measurements ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior
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