Magnetic and transport properties of the mixed-valent compound YbRh2Ga
文献类型：期刊论文
| 作者 | Chen, GF ; Sakamoto, I ; Ohara, S ; Takami, T ; Ikuta, H ; Mizutani, U |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2004 |
| 卷号 | 69期号:5 |
| 关键词 | HEAVY-FERMION COMPOUNDS STRUCTURE REFINEMENT KONDO SYSTEMS SUSCEPTIBILITY RESISTIVITY YB PRESSURE BEHAVIOR STATE YBAL3 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Chen, GF (reprint author), Nagoya Inst Technol, Dept Elect & Comp Engn, Grad Sch Engn, Nagoya, Aichi 4668555, Japan. |
| 中文摘要 | We report the measurements of specific heat, electrical resistivity, magnetic susceptibility, Hall coefficient and thermoelectric power on a ternary compound of YbRh2Ga, which crystallizes in the triple-hexagonal Na3As-type structure with the space group P6(3) cm. YbRh2Ga remains in a paramagnetic state down to 1.2 K. The magnetic susceptibility exhibits a broad maximum around 90 K for Hparallel toc or 170 K for Hperpendicular toc, respectively. Such maximum is a characteristic of the Ce- and Yb-based mixed-valent compounds. The temperature dependence of electrical resistivity shows an S-type behavior. The electronic specific heat coefficient is 36.6 mJ/molK(2), which is nine times larger than that of YRh2Ga (3.9 mJ/molK(2)) with no 4f electron. The thermoelectric power (DeltaTparallel toc) shows a broad minimum at about 120 K with a relatively large negative value, similar to-36 muV/K, which is typical for Yb-based spin-fluctuation systems. The Hall coefficient (Jparallel toc,Hperpendicular toc) exhibits a maximum around 60 K; at higher temperatures it varies with temperature in a manner suggestive of skew scattering. All of the measurement results indicate that YbRh2Ga is a typical mixed-valent system. The anisot-ropy observed in YbRh2Ga indicates anisotropic hybridization between localized 4f-electron and conduction elections. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57828]  |
| 专题 | 物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chen, GF,Sakamoto, I,Ohara, S,et al. Magnetic and transport properties of the mixed-valent compound YbRh2Ga[J]. PHYSICAL REVIEW B,2004,69(5). |
| APA | Chen, GF,Sakamoto, I,Ohara, S,Takami, T,Ikuta, H,&Mizutani, U.(2004).Magnetic and transport properties of the mixed-valent compound YbRh2Ga.PHYSICAL REVIEW B,69(5). |
| MLA | Chen, GF,et al."Magnetic and transport properties of the mixed-valent compound YbRh2Ga".PHYSICAL REVIEW B 69.5(2004). |
入库方式： OAI收割
来源：物理研究所
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