Following the discovery of long-range antiferromagnetic order in the parent compounds of
high-transition-temperature (high-T c ) copper oxides 1 , 2 , there have been efforts to …

Superconductivity was recently observed 1 , 2 , 3 , 4 , 5 , 6 , 7 in iron-arsenic-based compounds
with a superconducting transition temperature (T c ) as high as 56 K, naturally raising …

Background Contemporary data for causes of vision impairment and blindness form an
important basis of recommendations in public health policies. Refreshment of the Global Vision …

A series of layered CeO 1− x F x FeAs compounds with x= 0 to 0.20 are synthesized by the
solid state reaction method. Similar to the LaOFeAs, the pure CeOFeAs shows a strong …

Background Global and regional prevalence estimates for blindness and vision impairment
are important for the development of public health policies. We aimed to provide global …

There is a strong chance that 20th century warming will cause differences in precipitation
distribution, hydrological cycle and effective moisture changes over the globe. Arid central Asia …

We performed optical spectroscopy measurement on a superconducting Ba 0.6 K 0.4 Fe 2
As 2 single crystal with T c= 37 K. Formation of the superconducting energy gaps in the far-…

We have performed a high-resolution angle-resolved photoelectron spectroscopy study on
the newly discovered superconductor Ba 0.6 K 0.4 Fe 2 As 2 (T c= 37 K). We have observed …

Recently, high-transition-temperature (high-T c ) superconductivity was discovered in the
iron pnictide RFeAsO 1−x F x (R, rare-earth metal) family of materials. We use neutron …

The interplay between different ordered phases, such as superconducting, charge or spin
ordered phases, is of central interest in condensed-matter physics. The very recent discovery …