Abstract
The low-temperature properties of PrxLa1-xInAg 2 have been studied for a wide concentration range of Pr ions between 0 ≤ x ≤ 0:6. The susceptibility above T = 15K is well reproduced by the crystalelectric-field level scheme with a non-Kramers Γ3 doublet in the ground state for each concentration, while that below T = 15K shows a non-Fermi-liquid behavior with a logarithmic temperature dependence. The temperature dependence of the specific heat C/T shows a monotonic enhancement below T = 10 K, which can be scaled by a characteristic temperature T* defined at each concentration. These results suggest that the anomalous low-temperature properties are understood as the single-ion nature of Γ3 quadrupolar moments. The origin of the anomalous properties is discussed in connection with the quadrupolar Kondo effect arising from the correlation between the Γ3 moments and the conduction electrons.
| Original language | English |
|---|---|
| Pages (from-to) | 2332-2337 |
| Number of pages | 6 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 74 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Aug 2005 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Low-temperature properties in dilute quadrupolar compound Pr xLa1-xInAg2. / Kawae, Tatsuya; Li, Chenshu; Yoshida, Yasuo; Takeda, Kazuyoshi; Asano, Takayuki; Kitai, Tetsuo.
In: Journal of the Physical Society of Japan, Vol. 74, No. 8, 08.2005, p. 2332-2337.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-temperature properties in dilute quadrupolar compound Pr xLa1-xInAg2
AU - Kawae, Tatsuya
AU - Li, Chenshu
AU - Yoshida, Yasuo
AU - Takeda, Kazuyoshi
AU - Asano, Takayuki
AU - Kitai, Tetsuo
PY - 2005/8
Y1 - 2005/8
N2 - The low-temperature properties of PrxLa1-xInAg 2 have been studied for a wide concentration range of Pr ions between 0 ≤ x ≤ 0:6. The susceptibility above T = 15K is well reproduced by the crystalelectric-field level scheme with a non-Kramers Γ3 doublet in the ground state for each concentration, while that below T = 15K shows a non-Fermi-liquid behavior with a logarithmic temperature dependence. The temperature dependence of the specific heat C/T shows a monotonic enhancement below T = 10 K, which can be scaled by a characteristic temperature T* defined at each concentration. These results suggest that the anomalous low-temperature properties are understood as the single-ion nature of Γ3 quadrupolar moments. The origin of the anomalous properties is discussed in connection with the quadrupolar Kondo effect arising from the correlation between the Γ3 moments and the conduction electrons.
AB - The low-temperature properties of PrxLa1-xInAg 2 have been studied for a wide concentration range of Pr ions between 0 ≤ x ≤ 0:6. The susceptibility above T = 15K is well reproduced by the crystalelectric-field level scheme with a non-Kramers Γ3 doublet in the ground state for each concentration, while that below T = 15K shows a non-Fermi-liquid behavior with a logarithmic temperature dependence. The temperature dependence of the specific heat C/T shows a monotonic enhancement below T = 10 K, which can be scaled by a characteristic temperature T* defined at each concentration. These results suggest that the anomalous low-temperature properties are understood as the single-ion nature of Γ3 quadrupolar moments. The origin of the anomalous properties is discussed in connection with the quadrupolar Kondo effect arising from the correlation between the Γ3 moments and the conduction electrons.
UR - http://www.scopus.com/inward/record.url?scp=24644523713&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=24644523713&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.74.2332
DO - 10.1143/JPSJ.74.2332
M3 - Article
VL - 74
SP - 2332
EP - 2337
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 8
ER -