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Q & A: electron spin resonance

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Most recent answer: 02/03/2011
Q:
Is there any effects by electromagnetic wave on spin of electrons on multi-electrons system?
- PRADEEP (age 25)
Nepal
A:
Sure. Maybe the most commonly measured such effect is electron spin resonance (ESR, or EPR for electron paramagnetic resonance). In this phenomenon, electromagnetic radiation is absorbed as it flips spins from low energy to high energy states. ESR is often measured in systems which not only have many electrons but also where the electrons interact strongly. In particular, it's often used in ferromagnetic materials, as discussed in this nice article: .


Mike W.

(published on 02/03/2011)

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