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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.

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
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
- Boston College via EurekAlert: Quantum microscope and spin transistorBoston College via EurekAlert · secondary reporting
Corrections
No corrections have been recorded for this story.