Materials2026-03-192 minarXiv:2603.18906expressMagnetic Islands Inside a CrystalA crystal does not grow as a single whole but like a city of neighborhoods — grains. In each neighborhood, atoms are arranged in their own way, and the boundaries between them are like streets.Andriani Vervelaki·Boris Gross·Daniel Jetter·Katharina Kress·Timur Weber·Dieter Koelle·Kajetan M. Fijalkowski·Martin Klement·Nan Liu·Karl Brunner·Charles Gould·Laurens W. Molenkamp·Martino Poggio·Floris Braakmanquantum Hall effectKlaus von Klitzingband structurespacetime curvature👍👎☆SimplePopularAdvanced