This chummy behavior resembles
how electrons pair up in materials that conduct current without resistance, known as superconductors, researchers report in a paper accepted in Physical Review Letters.
Not exact matches
How far it goes in depends on the nature of the
electron pairing, and changes as the material is cooled down further and further.
Electrons hop from copper ion to copper ion and somehow
pair, although physicists do not agree about
how that happens.
«Researchers amplify the pulse and measure its height and from that figure out
how much energy created the
electron - hole
pairs,» ORNL's David Radford said.
One of the greatest mysteries is seeking to understand
how the
electrons in high - temperature superconductors interact, sometimes trying to avoid each other and at other times
pairing up - the crucial characteristic enabling them to carry current with no resistance.
The attached figure illustrates
how energetic gamma rays (dashed lines) from a distant blazar strike photons of extragalactic background light (wavy lines) and produce
pairs of
electrons and positrons.
This tells scientists
how the
electrons inside the sample are behaving; in superconductors they
pair up to conduct electricity without resistance.