In Electron Spin Resonance, Does Spin Up Have More Energy Than Spin Down?

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SUMMARY

In Electron Spin Resonance (ESR), the energy of spin +1/2 (spin up) and spin -1/2 (spin down) is equal. However, the orientation of the spins relative to the magnetic field affects the overall energy of the system; spin up aligns with the magnetic field, increasing energy, while spin down opposes it, decreasing energy. This fundamental principle is crucial for understanding ESR applications.

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jaketodd
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Also, is spin +1/2 the same as spin up? And is spin -1/2 the same as spin down?

The first image in the link below is a good reference.

http://depts.washington.edu/cmditr/mediawiki/index.php?title=Electron_Spin_Resonance_(ESR)"

Thanks,

Jake
 
Last edited by a moderator:
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The spin energy is equal, however since it is spin in opposite directions one works with the magnetic field to increase the energy of the entire system and one works against it to decrease the energy.
 
Thanks :smile:
 

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