Electronic, magnetic and superconducting properties of quasi-two dimensional compounds Ce2RhIn8 and La2RhIn8

被引：23

作者：

Ueda, T ^{[1
]}

Shishido, H

Hashimoto, S

Okubo, T

Yamada, M

Inada, Y

Settai, R

Harima, H

Galatanu, A

Yamamoto, E

Nakamura, N

Sugiyama, K

Takeuchi, T

Kindo, K

Namiki, T

Aoki, Y

Sato, H

Önuki, Y

机构：

[1] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

[2] Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan

[3] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[4] Osaka Univ, KYOKUGEN, Toyonaka, Osaka 5600043, Japan

[5] Osaka Univ, Low Temp Ctr, Toyonaka, Osaka 5600043, Japan

[6] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2004年 / 73卷 / 03期

关键词：

dHvA; fermi surface; magnetization; CEF; superconductivity; Ce2RhIn8; La2RhIn8;

D O I：

10.1143/JPSJ.73.649

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the electrical resistivity, magnetic Susceptibility, high-field magnetization, specific heat and de Haas-van Alphen (dHvA) oscillation of Ce(2)Rhln(8), together with the dHvA oscillation of La2RhIn8. In La2RhIn8 we detected three kinds of dHvA branches showing cylindrical Fermi surfaces, which are well explained by the result Of FLAPW energy band calculations. The corresponding two dHvA branches were detected in Ce2RhIn8, indicating that the topology of the Fermi surface in Ce2RhIn8 is approximately the same as that of LaRhIn8. The magnetic susceptibility and magnetization of Ce2RhIn8 were analyzed on the basis of the crystalline electric field scheme of localized-4f energy levels. Pressure-induced superconductivity was confirmed above 1.2GPa from the resistivity and ac-susceptibility measurements.

引用

页码：649 / 655

页数：7

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