期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.047003
关键词
-
资金
- JSPS
- MEXT, Japan
- EPSRC
- EPSRC [EP/G049483/1, EP/H025855/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H025855/1, EP/G049483/1] Funding Source: researchfish
- Grants-in-Aid for Scientific Research [09J00712, 20102006, 23102713, 23654119, 22740224, 23654118, 21340099, 20224008] Funding Source: KAKEN
High-precision measurements of magnetic penetration depth lambda in clean single crystals of LiFeAs and LiFeP superconductors reveal contrasting behaviors. In LiFeAs the low-temperature lambda(T) shows a flat dependence indicative of a fully gapped state, which is consistent with previous studies. In contrast, LiFeP exhibits a T-linear dependence of superfluid density alpha lambda(-2), indicating a nodal superconducting order parameter. A systematic comparison of quasiparticle excitations in the 1111, 122, and 111 families of iron-pnictide superconductors implies that the nodal state is induced when the pnictogen height from the iron plane decreases below a threshold value of similar to 1.33 angstrom.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据