April 04, 2016

"An international team of researchers have found evidence of a mysterious new state of matter, first predicted 40 years ago, in a real material."

Phys.org: This state, known as a quantum spin liquid, causes electrons - thought to be indivisible building blocks of nature - to break into pieces. via University of Cambridge

'The researchers, including physicists from the University of Cambridge, measured the first signatures of these fractional particles, known as Majorana fermions, in a two-dimensional material with a structure similar to graphene. Their experimental results successfully matched with one of the main theoretical models for a quantum spin liquid, known as a Kitaev model. The results are reported in the journal Nature Materials.

'Quantum spin liquids are mysterious states of matter which are thought to be hiding in certain magnetic materials, but had not been conclusively sighted in nature.

'The observation of one of their most intriguing properties—electron splitting, or fractionalisation—in real materials is a breakthrough. The resulting Majorana fermions may be used as building blocks of quantum computers, which would be far faster than conventional computers and would be able to perform calculations that could not be done otherwise.'

"Proximate Kitaev quantum spin liquid behaviour in a honeycomb magnet" by A. Banerjee, et al, here

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