A team of researchers at the University of California at Berkeley, working with a group at Lawrence Berkeley National Laboratory, has developed a non-invasive way to image Wigner crystals directly. In their paper published in the journal Nature, the group describes their approach and explain how it could be used to advance research regarding Wigner crystal states. Carmen Rubio-Verdú with Columbia University has published a News & Views piece outlining the nature of Wigner crystals and describing the work by the team in the same journal issue.
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Source: Phys.org