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Tee, XY; Luo, HG; Xiang, T ; Vandervelde, D; Salamon, MB; Sugawara, H; Sato, H; Panagopoulos, C; Chia, EEM; Tee, XY (reprint author), Nanyang Technol Univ, Div Phys & Appl Phys, Sch Phys & Math Sci, Singapore 637371, Singapore.
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| Penetration depth study of LaOs4Sb12: Multiband s-wave superconductivity | |
| Source Publication | PHYSICAL REVIEW B
 |
| Language | 英语 |
| Keyword | Field Symmetry Order Heat |
| Abstract | We measured the magnetic penetration depth lambda(T) in single crystals of LaOs4Sb12 (T-c = 0.74 K) down to 85 mK using a tunnel-diode-oscillator technique. The observed low-temperature exponential dependence indicates an s-wave gap. Fitting the low-temperature data to a BCS s-wave expression gives the zero-temperature gap value Delta(0) = (1.34 +/- 0.07)k(B)T(c) which is significantly smaller than the BCS value of 1.76k(B)T(c). In addition, the normalized superfluid density rho(T) shows an unusually long suppression near T-c and is best fit by a two-band s-wave model. |
| 2012 | |
| ISSN | 1098-0121 |
| Volume | 86Issue:6Pages:64518 |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | NSF [DMR99-72087, DMR01-07253]; US Department of Energy [DEFG02-91-ER45439]; National Research Foundation of Singapore; NSFC [10934008, 10874215, 11174115]; MOST 973 Project of China [2011CB309703]; Ministry of Education, Culture, Sports, Science, and Technology, Japan [21102503] ; NSF [DMR99-72087, DMR01-07253]; US Department of Energy [DEFG02-91-ER45439]; National Research Foundation of Singapore; NSFC [10934008, 10874215, 11174115]; MOST 973 Project of China [2011CB309703]; Ministry of Education, Culture, Sports, Science, and Technology, Japan [21102503] ; NSF [DMR99-72087, DMR01-07253]; US Department of Energy [DEFG02-91-ER45439]; National Research Foundation of Singapore; NSFC [10934008, 10874215, 11174115]; MOST 973 Project of China [2011CB309703]; Ministry of Education, Culture, Sports, Science, and Technology, Japan [21102503] ; NSF [DMR99-72087, DMR01-07253]; US Department of Energy [DEFG02-91-ER45439]; National Research Foundation of Singapore; NSFC [10934008, 10874215, 11174115]; MOST 973 Project of China [2011CB309703]; Ministry of Education, Culture, Sports, Science, and Technology, Japan [21102503] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/15045 |
| Collection | SCI期刊论文 |
| Corresponding Author | Tee, XY (reprint author), Nanyang Technol Univ, Div Phys & Appl Phys, Sch Phys & Math Sci, Singapore 637371, Singapore. |
| Recommended Citation GB/T 7714 | Tee, XY,Luo, HG,Xiang, T,et al. Penetration depth study of LaOs4Sb12: Multiband s-wave superconductivity[J]. PHYSICAL REVIEW B,2012,86(6):64518. |
| APA | Tee, XY.,Luo, HG.,Xiang, T.,Vandervelde, D.,Salamon, MB.,...&Tee, XY .(2012).Penetration depth study of LaOs4Sb12: Multiband s-wave superconductivity.PHYSICAL REVIEW B,86(6),64518. |
| MLA | Tee, XY,et al."Penetration depth study of LaOs4Sb12: Multiband s-wave superconductivity".PHYSICAL REVIEW B 86.6(2012):64518. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Penetration depth st（336KB） | 开放获取 | License | Application Full Text | |||
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