Qnami Foundry supports design of a Diamond micro-chip for quantum microscopy

Image credit: https://arxiv.org/pdf/2403.10414

This work, led by Mark Ku from the University of Delaware, showcases a diamond micro-chip (DMC) featuring a (111)-oriented nitrogen-vacancy (NV) center ensemble that enables high-resolution quantum microscopy of electrical current, magnetization, and spin structures. The diamond micro-chip was provided by the Qnami Quantum Foundry. Researchers demonstrate that the DMC exhibits minimal strain variation across large fields of view and maintains excellent NV spin coherence and optical quality—key for sensitive magnetometry. Using this platform, they achieve diffraction-limited, wide-field quantum microscopy of electrical currents and introduce a polymer-based method for deterministic DMC placement on various materials. These advances highlight the DMC’s potential to expand NV quantum sensing applications across materials science, electronics, spintronics, geology, biomedicine, and chemistry.

Read the full article: AVS Quantum Sci. 6, 044405 (2024)

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All-oxide Magnetoelectric logic

Scientific Publication

Ramamoorthy Ramesh’s team, using Scanning NV data from Proteus Q, demonstrated ferroelectric control of magnons in BiFeO₃, enabling energy-efficient spin transport for low-dissipation nanoelectronics.

Spatial Resolution in Scanning NV Magnetometry – Technical Note

Technical Note

This technical note explains how spatial resolution is defined in Scanning NV Magnetometry. For a given distance d between the NV center and the scanned surface, the best achievable lateral spatial resolution is 0.86 d.

Scanning NV magnetometry reveals magnetic textures in 2D material CrBr3 in cryogenic environment

Applying scanning NV magnetometry to cryogenic temperatures allowed Professor Wrachtrup and his collaborators to reveal magnetic domains and study their dynamics in atomically thin van der Waals magnets.

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