superconductor-ferromagnet hybrids; magnetic tweezers; superconducting devices
Abstract :
[en] Local polarization of magnetic materials has become a well-known and widely used method for storing binary information. Numerous applications in our daily life such as credit cards, computer hard drives, and the popular magnetic drawing board toy, rely on this principle. In this work, we review the recent advances on the magnetic recording of inhomogeneous magnetic landscapes produced by superconducting films. We summarize the current compelling experimental evidence showing that magnetic recording can be applied for imprinting in a soft magnetic layer the flux trajectory taking place in a superconducting layer at cryogenic temperatures. This approach enables the ex-situ observation at room temperature of the imprinted magnetic flux landscape obtained below the critical temperature of the superconducting state. The undeniable appeal of the proposed technique lies in its simplicity and the potential to improve the spatial resolution, possibly down to the scale of a few vortices.
Disciplines :
Physics
Author, co-author :
Shaw, Gorky ; Université de Liège - ULiège > Physics > Experimental Physics of Nanostructured Materials, Q-MAT, CESAM,
Blanco Alvarez, Sylvain ; Université de Liège - ULiège > Département de physique > Physique expérimentale des matériaux nanostructurés
Brisbois, Jérémy ; Université de Liège - ULiège > Département de physique > CSL (Centre Spatial de Liège)
Burger, Loïc ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Electronique et microsystèmes
Pinheiro, Lincoln B. L. G.; Universidade Federal de São Carlos, Brazil
Kramer, Roman B.G.; CNRS, Institut Néel, University Grenoble Alpes, 38000 Grenoble, France
Motta, Maycon; Departamento de Física, Universidade Federal de São Carlos, 13565-905 São Carlos, Brazi
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