We find what appear to be persistent asymmetric structures in the scattering material at the location of the planet candidates, which could be responsible at least for parts of the signals measured with sparse - aperture masking. (arxiv.org)
Only certain materials have that skyrmion - friendly asymmetric structure, limiting the possibilities for studying the quasiparticles or coaxing them to form under warmer conditions. (sciencenews.org)
Those first magnetic skyrmions found by Pfleiderer and colleagues appeared spontaneously in crystals with asymmetric structures that induce a twist between neighboring atoms. (sciencenews.org)