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Current‐Controlled Skyrmion Number
In article number 2304044, Jin Tang, Haifeng Du, and co‐workers present the flexible manipulation of topological charge in a nanostripe using pulsed currents. They demonstrate reversible electrical control over the transformation from a stripe domain to a single skyrmion chain. Moreover, they successfully fine‐tune the skyrmion number of the chain by modulating the...
Skyrmions are vortex‐like localized magnetic structures that possess an integer‐valued topological index known as the skyrmion number or topological charge. Skyrmion number determines the topology‐related emergent magnetism, which is highly desirable for advanced storage and computing devices. In order to achieve device functions, it is necessary to manipulate the skyrmion number in confined nanostructured...