Abstract
In order to clarify the effect of external pressure on the dense Kondo state, we have measured the electrical resistivity of a PdCe intermetallic compound in the temperature range 77-300 K under several pressures up to 7 GPa. The changes in electrical resistivity and lattice volume with pressure have been also examined at room temperature. It was found that the resistivity ratio of PdCe at room temperature increases with pressure P gradually to R(P) R(Pa) = 1.75 until it reaches 7.7 GPa, where Pa is the ambient pressure, and then shows a rapid increase to 2.5 at about 8.5 GPa, while the lattice volume decreases monotonically with pressure over the whole range up to 9.5 GPa. The resistivity ratio R(T) R(TR) at low temperatures T increases significantly as the pressure is raised. These experimental results show that the dense Kondo effect in PdCe is strongly enhanced by external pressure.
| Original language | English |
|---|---|
| Pages (from-to) | 131-134 |
| Number of pages | 4 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 54 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 1 1993 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
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External pressure enhancement of the dense Kondo effect in a PdCe intermetallic compound. / Umeo, Kazunori; Aya, Yoichiro; Itakura, Masaru; Kuwano, Noriyuki; Oki, Kensuke.
In: Journal of Physics and Chemistry of Solids, Vol. 54, No. 1, 01.01.1993, p. 131-134.Research output: Contribution to journal › Article
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TY - JOUR
T1 - External pressure enhancement of the dense Kondo effect in a PdCe intermetallic compound
AU - Umeo, Kazunori
AU - Aya, Yoichiro
AU - Itakura, Masaru
AU - Kuwano, Noriyuki
AU - Oki, Kensuke
PY - 1993/1/1
Y1 - 1993/1/1
N2 - In order to clarify the effect of external pressure on the dense Kondo state, we have measured the electrical resistivity of a PdCe intermetallic compound in the temperature range 77-300 K under several pressures up to 7 GPa. The changes in electrical resistivity and lattice volume with pressure have been also examined at room temperature. It was found that the resistivity ratio of PdCe at room temperature increases with pressure P gradually to R(P) R(Pa) = 1.75 until it reaches 7.7 GPa, where Pa is the ambient pressure, and then shows a rapid increase to 2.5 at about 8.5 GPa, while the lattice volume decreases monotonically with pressure over the whole range up to 9.5 GPa. The resistivity ratio R(T) R(TR) at low temperatures T increases significantly as the pressure is raised. These experimental results show that the dense Kondo effect in PdCe is strongly enhanced by external pressure.
AB - In order to clarify the effect of external pressure on the dense Kondo state, we have measured the electrical resistivity of a PdCe intermetallic compound in the temperature range 77-300 K under several pressures up to 7 GPa. The changes in electrical resistivity and lattice volume with pressure have been also examined at room temperature. It was found that the resistivity ratio of PdCe at room temperature increases with pressure P gradually to R(P) R(Pa) = 1.75 until it reaches 7.7 GPa, where Pa is the ambient pressure, and then shows a rapid increase to 2.5 at about 8.5 GPa, while the lattice volume decreases monotonically with pressure over the whole range up to 9.5 GPa. The resistivity ratio R(T) R(TR) at low temperatures T increases significantly as the pressure is raised. These experimental results show that the dense Kondo effect in PdCe is strongly enhanced by external pressure.
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U2 - 10.1016/0022-3697(93)90125-B
DO - 10.1016/0022-3697(93)90125-B
M3 - Article
AN - SCOPUS:30244573605
VL - 54
SP - 131
EP - 134
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
SN - 0022-3697
IS - 1
ER -