锕系超导体UTe₂中铁磁涨落与超导性的共存 。 （注：原文中的UTe存在错误，根据常见研究对象推测应为UTe₂ ）
Coexistence of ferromagnetic fluctuations and superconductivity in the actinide superconductor UTe.
作者信息
Sundar Shyam, Gheidi S, Akintola K, Côté A M, Dunsiger S R, Ran S, Butch N P, Saha S R, Paglione J, Sonier J E
机构信息
Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6.
Kwantlen Polytechnic University, Richmond, British Columbia, Canada V6X 3X7.
出版信息
Phys Rev B. 2019 Oct;100(14). doi: 10.1103/physrevb.100.140502.
We report low-temperature muon spin relaxation/rotation (SR) measurements on single crystals of the actinide superconductor UTe. Below 5 K we observe a continuous slowing down of magnetic fluctuations that persists through the superconducting transition temperature ( = 1.6 K), but we find no evidence of long-range or local magnetic order down to 0.025 K. The temperature dependence of the dynamic relaxation rate down to 0.4 K agrees with the self-consistent renormalization theory of spin fluctuations for a three-dimensional weak itinerant ferromagnetic metal. Our SR measurements also indicate that the superconductivity coexists with the magnetic fluctuations.
我们报告了对锕系超导体UTe单晶进行的低温μ子自旋弛豫/旋转（SR）测量。在5 K以下，我们观察到磁涨落持续减缓，这种减缓一直持续到超导转变温度（ = 1.6 K），但在低至0.025 K时，我们没有发现长程或局域磁有序的证据。低至0.4 K时动态弛豫率的温度依赖性与三维弱巡游铁磁金属自旋涨落的自洽重整化理论相符。我们的SR测量还表明，超导性与磁涨落共存。
Zotero 插件