Scaling of the physical properties in Ba(Fe,Ni)(2)As-2 single crystals: Evidence for quantum fluctuations
文献类型：期刊论文
| 作者 | Rodiere, P ; Klein, T ; Lemberger, L ; Hasselbach, K ; Demuer, A ; Kacmarcik, J ; Wang, ZS ; Luo, HQ ; Lu, XY ; Wen, HH ; Gucmann, F ; Marcenat, C |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2012 |
| 卷号 | 85期号:21 |
| 关键词 | INSULATOR TRANSITION SUPERFLUID DENSITY CRITICAL-POINT SUPERCONDUCTORS TEMPERATURE BEHAVIOR |
| ISSN号 | 1098-0121 |
| 通讯作者 | Rodiere, P (reprint author), CNRS, Inst Neel, Boite Postale 166, F-38042 Grenoble, France. |
| 中文摘要 | We report on local magnetization, tunnel diode oscillators, and specific-heat measurements in a series of Ba(NixFe1-x)(2)As-2 single crystals (0.26 <= x <= 0.74). We show that the London penetration depth lambda(T) = lambda(0) + Delta lambda(T) scales as lambda(0) proportional to 1/T-c(0.85+/-0.2), Delta lambda(T) proportional to T2.3+/-0.3 (for T < T-c/3), and partial derivative Delta lambda/partial derivative T-2 proportional to 1/T-c(2.8+/-0.3) in both underdoped and overdoped samples. Moreover, the slope of the upper critical field [H-c2' = -(dH(c2)/dT)(|T -> Tc]) decreases with T-c in overdoped samples but increases with decreasing T-c in underdoped samples. The remarkable variation of lambda(0) with T-c and the nonexponential temperature dependence of Delta lambda clearly indicates that pair-breaking effects are important in this system. We show that the observed scalings strongly suggest that those pair-breaking effects could be associated with quantum fluctuations near three-dimensional superconducting critical points. |
| 收录类别 | SCI |
| 资助信息 | French National Research Agency [ANR-09-Blanc-0211 SupraTetrafer]; PHC from French government [23073WF]; Slovak Research and Development Agency [SKFR-0024-09] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52319]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Rodiere, P,Klein, T,Lemberger, L,et al. Scaling of the physical properties in Ba(Fe,Ni)(2)As-2 single crystals: Evidence for quantum fluctuations[J]. PHYSICAL REVIEW B,2012,85(21). |
| APA | Rodiere, P.,Klein, T.,Lemberger, L.,Hasselbach, K.,Demuer, A.,...&Marcenat, C.(2012).Scaling of the physical properties in Ba(Fe,Ni)(2)As-2 single crystals: Evidence for quantum fluctuations.PHYSICAL REVIEW B,85(21). |
| MLA | Rodiere, P,et al."Scaling of the physical properties in Ba(Fe,Ni)(2)As-2 single crystals: Evidence for quantum fluctuations".PHYSICAL REVIEW B 85.21(2012). |
入库方式： OAI收割
来源：物理研究所
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