Quantum Sensing Applications

Multiferroics

Bismuth Ferrite (BFO) is a fascinating material in which magnetic order can be controlled purely through electrical means, making it a promising candidate for ultra-efficient, next-generation spintronic devices. The Qnami ProteusQ has been effectively utilized to image its electrical and magnetic domains, as demonstrated by numerous publications.

Optimizing Off-Axis Fields for Vector Magnetometry

Paul Stevenson’s research at Northeastern University utilized the Qnami ProteusQ microscope to enhance vector magnetometry, allowing precise measurement of both parallel and perpendicular stray fields in complex materials like bismuth ferrite.

BFO as a platform for ultraefficient spintronics

Magnetoelectric coupling in BFO is seen as never before with ProteusQ by combining Piezo Force and Scanning NV Microscopy.

Multiferroicity of Single-Spin Cycloid state in BFO thin films

ProteusQ combined with AI-based tools allows researchers to unveil for the first time puzzling magnon dynamics through magnetic domain walls.

Magnon spin diffusion across 180-degree domain walls

ProteusQ combined with AI-based tools allows researchers to unveil for the first time puzzling magnon dynamics through magnetic domain walls.

Topological defects in multiferroic antiferromagnetic materials

Qnami Quantilevers enabled the observation of topological defects in multiferroic antiferromagnets at rooom temperature for the first time.

Exotic antiferromagnetic spin cycloids in bismuth ferrite thin films

Scanning NV Magnetometry unlocks the characterization of the effects of strain and electrical fields on exotic antiferromagnetic spin textures in multiferroics.

Long decay length of magnon-polarons in multiferroic/ ferromagnetic heterostructures

Scanning NV Magnetometry reveals nanoscopic weak magnetic inhomogeneities in nanowires never observed before by standard characterization tools.

Antiferromagnetic textures in BiFeO3controlled by strain and electric field – Nature Communications

Team of Prof. V.Garcia from CNRS/Thales shows electrical control of the magnetic states of BFO opening a new playground for low-power spintronics

Electric and antiferromagnetic chiral textures at multiferroic domain walls – Nature Materials

French research group led by Prof. M. Viret uses scanning NV magnetometry to reveal a novel type of chiral spin-textures occurring on BiFeO3’s domain-walls.
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