Abstract
We measured the electrical resistivity, specific heat, magnetostriction, magnetization and de Haas-van Alphen (dHvA) oscillation in UPd3 with the hexagonal structure in order to clarify the quadrupolar and magnetic properties as well as the nature of conduction electrons. The high-field magnetization measurement at 4.2 K in magnetic fields up to about 50 T reveals two-successive metamagnetic transitions at 10.2 and 17.9 T for the field along the [0001] direction, and one transition at 27.6 T along [112̄0]. From the results of magnetization as well as the magnetostriction measurements at various temperatures, we determined the magnetic phase diagram. Phase boundaries are discussed on the basis of the crystalline electric field scheme of the 5f2 configuration and the quadrupolar interaction of Ozx. Reflecting the localized 5f-electrons, the conduction electrons have small cyclotron effective masses ranging from 0.24 to 3.62 m0, which were determined by the dHvA experiment. The dHvA data are compared to the result of band calculations based on the 5f2-localized band model.
| Original language | English |
|---|---|
| Pages (from-to) | 1731-1743 |
| Number of pages | 13 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 70 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2001 |
| Externally published | Yes |
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Keywords
- DHvA
- Fermi surface
- Magnetization
- Magnetostriction
- Quadrupolar ordering
- UPd
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Quadrupolar Phase Diagram and Fermi Surface Properties in the Localized 5f2-Electron System UPd3 . / Tokiwa, Yoshihumi; Sugiyama, Kiyohiro; Takeuchi, Tetuya; Nakashima, Miho; Settai, Rikio; Inada, Yoshihiko; Haga, Yoshinori; Yamamoto, Etsuji; Kindo, Koichi; Harima, Hisatomo; Onuki, Yoshichika.
In: Journal of the Physical Society of Japan, Vol. 70, No. 6, 06.2001, p. 1731-1743.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quadrupolar Phase Diagram and Fermi Surface Properties in the Localized 5f2-Electron System UPd3
AU - Tokiwa, Yoshihumi
AU - Sugiyama, Kiyohiro
AU - Takeuchi, Tetuya
AU - Nakashima, Miho
AU - Settai, Rikio
AU - Inada, Yoshihiko
AU - Haga, Yoshinori
AU - Yamamoto, Etsuji
AU - Kindo, Koichi
AU - Harima, Hisatomo
AU - Onuki, Yoshichika
PY - 2001/6
Y1 - 2001/6
N2 - We measured the electrical resistivity, specific heat, magnetostriction, magnetization and de Haas-van Alphen (dHvA) oscillation in UPd3 with the hexagonal structure in order to clarify the quadrupolar and magnetic properties as well as the nature of conduction electrons. The high-field magnetization measurement at 4.2 K in magnetic fields up to about 50 T reveals two-successive metamagnetic transitions at 10.2 and 17.9 T for the field along the [0001] direction, and one transition at 27.6 T along [112̄0]. From the results of magnetization as well as the magnetostriction measurements at various temperatures, we determined the magnetic phase diagram. Phase boundaries are discussed on the basis of the crystalline electric field scheme of the 5f2 configuration and the quadrupolar interaction of Ozx. Reflecting the localized 5f-electrons, the conduction electrons have small cyclotron effective masses ranging from 0.24 to 3.62 m0, which were determined by the dHvA experiment. The dHvA data are compared to the result of band calculations based on the 5f2-localized band model.
AB - We measured the electrical resistivity, specific heat, magnetostriction, magnetization and de Haas-van Alphen (dHvA) oscillation in UPd3 with the hexagonal structure in order to clarify the quadrupolar and magnetic properties as well as the nature of conduction electrons. The high-field magnetization measurement at 4.2 K in magnetic fields up to about 50 T reveals two-successive metamagnetic transitions at 10.2 and 17.9 T for the field along the [0001] direction, and one transition at 27.6 T along [112̄0]. From the results of magnetization as well as the magnetostriction measurements at various temperatures, we determined the magnetic phase diagram. Phase boundaries are discussed on the basis of the crystalline electric field scheme of the 5f2 configuration and the quadrupolar interaction of Ozx. Reflecting the localized 5f-electrons, the conduction electrons have small cyclotron effective masses ranging from 0.24 to 3.62 m0, which were determined by the dHvA experiment. The dHvA data are compared to the result of band calculations based on the 5f2-localized band model.
KW - DHvA
KW - Fermi surface
KW - Magnetization
KW - Magnetostriction
KW - Quadrupolar ordering
KW - UPd
UR - http://www.scopus.com/inward/record.url?scp=0035613829&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035613829&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.70.1731
DO - 10.1143/JPSJ.70.1731
M3 - Article
AN - SCOPUS:0035613829
VL - 70
SP - 1731
EP - 1743
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 6
ER -