Non-Fermi-liquid behavior in an undoped single crystal of CeRh2Ga
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:1 |
| 关键词 | THERMOELECTRIC-POWER STRUCTURE REFINEMENT ELECTRON SYSTEMS SUPERCONDUCTIVITY TRANSITION Y1-XUXPD3 METALS PHASE |
| ISSN号 | 1098-0121 |
| 通讯作者 | Chen, GF (reprint author), Nagoya Inst Technol, Grad Sch Engn, Dept Elect & Comp Engn, Nagoya, Aichi 4668555, Japan. |
| 中文摘要 | The measurements of specific heat C, electrical resistivity rho, magnetic susceptibility chi, magnetization M, Hall coefficient R-H, and thermoelectric power S were performed on a ternary compound of CeRh2Ga which crystallizes in the triple-hexagonal Na3As-type structure with the space group P6(3)cm. CeRh2Ga remains in a paramagnetic state down to 1.2 K and exhibits a non-Fermi-liquid behavior. The specific heat divided by temperature C/T shows a T-1+lambda power-law temperature dependence with lambda = 0.15 (from 7 K to the lowest measured temperature 1.2 K). chi(perpendicular to) (Hperpendicular toc) exhibits the same power-law behavior up to 50 K with lambda = 0.21, while chi(parallel to) (Hparallel toc) shows the power-law behavior in the restricted temperature range up to 20 K with lambda = 0.52. At T = 1.8 K and H<1 T, M varies linearly with H; above 1 T, M could be described by M=const+H-lambda with lambda = 0.59 and 0.20 for Hparallel toc and Hperpendicular toc, respectively. The power-law dependence behavior is consistent with the Griffiths phase scenarios. rho increases linearly with decreasing temperature below 4 K, also signaling non-Fermi-liquid behavior. R-H shows a 1/T dependence below 20 K. S shows a ln T dependence between 4 and 20 K, followed by a negative minimum at similar to3 K. The low-temperature unconventional behaviors in R-H and S for CeRh2Ga may be related to the non-Fermi-liquid anomalies observed in the specific heat and magnetic susceptibility. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57829]  |
| 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. Non-Fermi-liquid behavior in an undoped single crystal of CeRh2Ga[J]. PHYSICAL REVIEW B,2004,69(1). |
| APA | Chen, GF,Sakamoto, I,Ohara, S,Takami, T,Ikuta, H,&Mizutani, U.(2004).Non-Fermi-liquid behavior in an undoped single crystal of CeRh2Ga.PHYSICAL REVIEW B,69(1). |
| MLA | Chen, GF,et al."Non-Fermi-liquid behavior in an undoped single crystal of CeRh2Ga".PHYSICAL REVIEW B 69.1(2004). |
入库方式： OAI收割
来源：物理研究所
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