Graduate Changing the spin of an electron

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    Electron Spin
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SUMMARY

It is not possible to change the intrinsic spin value of an electron from 1/2 to 2/2; the spin quantum number remains fixed. However, the direction of the electron's spin can be altered, such as changing from +1/2 (up spin) to -1/2 (down spin). This directional change is influenced by external factors, particularly magnetic fields, which cause randomly oriented spins to align with the field. Flipping an electron's spin requires the application of angular momentum rather than energy input.

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Is it possible to change the spin of an electron (or any particle) by supplying some energy to it?
 
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The spin itself as in changing the 1/2 to 2/2? If so, no. It is not possible. However it is possible to change the direction of the spin, as in changing it from an up spin to a down spin.
 
By changing I mean +1/2 to -1/2
 
I believe so, as the + and - simply refer to the direction.
 
Isn't that what a magnetic field does? The initially randomly spinning electrons change their spins to align with the magnetic field.
 
in order to flip a spin you don't necessarily have to supply energy but angular momentum ...
 

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