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arXiv · 2306.11145

Superconducting Diode sensor

A. Sinner·X. -G. Wang·S. S. P. Parkin·A. Ernst·V. Dugaev·L. Chotorlishvili
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Abstract

We study the superconducting Josephson junction diode operating via the magnetic field of skyrmions. Inspired by the near-field optical microscopy, we propose to partially screen the magnetic field and analyze part-by-part the magnetic texture of the skyrmion. The detected asymmetric supercurrent is influenced by the skyrmionic magnetic field and magnetic texture. This enables the Josephson junction diode to function as a hyperfine sensor and to read out the information about the morphology of the complex magnetic textures. The proposed setup opens a new avenue in magnetometry and represents an alternative to the technologies based on the nitrogen-vacancy centers.

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A. Sinner, X. -G. Wang, S. S. P. Parkin, A. Ernst, V. Dugaev, L. Chotorlishvili. 2023-06-19. Superconducting Diode sensor. https://doi.org/10.1103/physrevb.109.214510

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