Grainy superconductivity
Nature Communications
2011년8월3일
The grain boundaries of iron pnictide superconductors have advantages over those of more commonly used cuprate superconductors reports a paper in Nature Communications this week. Iron pnictides have been studied extensively, and many of their advantages over cuprates have already been determined. But the additional information provided by this study could aid the development of high critical temperature superconductors that could be used to produce ‘ideal’ electric power lines with zero power consumption.
The misalignment of crystal grain boundaries, which deteriorates current densities, has previously been considered major problem in the development of high critical temperature superconductors. Hideo Hosono and co-workers investigate transport properties through well-defined bicrystal grain boundaries with different misorientation angles. They find that the current density in iron pnictides is tolerant to higher misorientation angles than in cuprates.
doi: 10.1038/ncomms1419
리서치 하이라이트
-
7월7일
Public health: Tackling adolescent stressNature
-
6월23일
Scientific community: Women credited less than men in scientific paper authorshipNature
-
5월12일
Geoscience: Monitoring earthquakes at the speed of lightNature
-
5월4일
Microbiology: Bacteriophage therapy helps treat multi-drug resistant infection in an immunocompromised patientNature Communications
-
4월27일
Planetary science: Building blocks of DNA detected in meteoritesNature Communications
-
4월8일
Health: Psilocybin use associated with lower risk of opioid addictionScientific Reports