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A Quantum Microscope Watches a Spin Transistor Switch

A scanning quantum sensor exposed the charge regime behind a device that combines magnetic memory with semiconductor logic.

Published Updated Story ID: mp-2026-07-22-003
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Summary

A scanning quantum sensor exposed the charge regime behind a device that combines magnetic memory with semiconductor logic.

A Boston College-led team used a scanning quantum sensor to image a van der Waals spin transistor during switching. The device operated in a space-charge-limited regime and reached an electrical on/off ratio reported at one million percent and a magnetic ratio of 3,000 percent. The laboratory result points toward logic and nonvolatile memory in one component, but it is not yet a production processor.

Why it matters

A scanning quantum sensor exposed the charge regime behind a device that combines magnetic memory with semiconductor logic.

Limits and context

  • The laboratory result points toward logic and nonvolatile memory in one component, but it is not yet a production processor.

Key claims

  1. A scanning quantum sensor exposed the charge regime behind a device that combines magnetic memory with semiconductor logic.

    Qualification: The laboratory result points toward logic and nonvolatile memory in one component, but it is not yet a production processor.

    Evidence: source-2026-07-22-003

Sources

  1. Boston College via EurekAlert: Quantum microscope and spin transistorBoston College via EurekAlert · secondary reporting

Corrections

No corrections have been recorded for this story.