Yu-Shiba-Rusinov bands in ferromagnetic superconducting diamond

Abstract

The combination of different exotic properties in materials paves the way for the emergence of their new potential applications. An example is the recently found coexistence of the mutually antagonistic ferromagnetism and superconductivity in hydrogenated boron-doped diamond, which promises to be an attractive system with which to explore unconventional physics. Here, we show the emergence of Yu-Shiba-Rusinov (YSR) bands with a spatial extent of tens of nanometers in ferromagnetic superconducting diamond using scanning tunneling spectroscopy. We demonstrate theoretically how a two-dimensional (2D) spin lattice at the surface of a three-dimensional (3D) superconductor gives rise to the YSR bands, and how their density-of-states profile correlates with the spin lattice structure. The established strategy to realize new forms of the coexistence of ferromagnetism and superconductivity opens a way to engineer the unusual electronic states and also to design better performing superconducting devices.

13 pages, 5 figures

References in corpus (2)

• Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
• Type II superconductivity in SrPd2Ge2

Cited by in corpus (8)

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• Magnetic flux induced topological superconductivity in magnetic atomic rings
• Direct observation of intrinsic surface magnetic disorder in amorphous superconducting films
• First-principles calculation study on the stabilities of the (100) and (111) surfaces of boron-doped diamond
• Merohedral disorder and impurity impacts on superconductivity of fullerenes
• Evolution of the Andreev bands in the half-filled superconducting periodic Anderson model