TY - JOUR
T1 - Non-Fermi liquid behavior in dilute quadrupolar system Pr xLa1-xPb3 with x ≤ 0.05
AU - Kawae, Tatsuya
AU - Yamamoto, Tatsuharu
AU - Yurue, Kenji
AU - Tateiwa, Naoyuki
AU - Takeda, Kazuyoshi
AU - Kitai, Tetsuo
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003/9
Y1 - 2003/9
N2 - We have studied the low-temperature properties of PrxLa 1-x,Pb3 with non-Kramers Γ3 quadrupolar moments of the crystal-electric-field ground state, for a wide concentration range of Pr ions. For z ≤ 0.05, the specific heat C/T increases monotonically below T = 1.5 K, which can be scaled with a characteristic temperature T* defined at each concentration x. The electrical resistivity ρ(T) in the corresponding temperature region shows a marked decrease deviating from a Fermi-liquid behavior ρ(T) ∝ T2. The Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons may give rise to such anomalous behavior.
AB - We have studied the low-temperature properties of PrxLa 1-x,Pb3 with non-Kramers Γ3 quadrupolar moments of the crystal-electric-field ground state, for a wide concentration range of Pr ions. For z ≤ 0.05, the specific heat C/T increases monotonically below T = 1.5 K, which can be scaled with a characteristic temperature T* defined at each concentration x. The electrical resistivity ρ(T) in the corresponding temperature region shows a marked decrease deviating from a Fermi-liquid behavior ρ(T) ∝ T2. The Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons may give rise to such anomalous behavior.
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U2 - 10.1143/JPSJ.72.2141
DO - 10.1143/JPSJ.72.2141
M3 - Article
AN - SCOPUS:0242676091
SN - 0031-9015
VL - 72
SP - 2141
EP - 2144
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 9
ER -