Just as a literature buff might explore a novel for recurring themes, physicists and mathematicians search for repeating structures present throughout nature. For example, a certain geometrical ...

Figure 1 (a) Concept of a 1D space-time hopfion crystal. (b) Spin textures on x-y transverse cross-section and (c) that on selective longitudinal cross-sections through the center of a unit hopfion ...

(Nanowerk News) Exotic magnetic structures such as skyrmions are also known as topological particles. Because they can be easily moved within a crystal, they are envisioned as promising information ...

（a）Structure of a magnetic hopfion.（b）Experimental observation of the magnetic induction of the hopfion structure. A research team from the High Magnetic Field Laboratory of the Hefei Institutes of ...