Mössbauer effect at low T versus high T, making phonons.

  • Thread starter Spinnor
  • Start date
  • #1
Spinnor
Gold Member
2,141
336

Main Question or Discussion Point

We read that when a crystal used in the Mössbauer effect is cooled we enhance the odds of a nucleus emitting a gamma ray with no crystal phonons being produced. When the crystal is heated there are more phonons around then at lower temperatures. How does the presents of more phonons enhance the probability of an emitting nucleus to produce another phonon as opposed to just giving the crystal as a whole just translational energy?

Thanks for any help!
 

Answers and Replies

  • #2
DrDu
Science Advisor
6,032
759
That's the difference between spontaneous and stimulated emission. The probability, to create a phonon when there are already n present, is proportional n+1.
 
  • #3
Spinnor
Gold Member
2,141
336
Ouch, that was simple! Thank you DrDu!
 

Related Threads on Mössbauer effect at low T versus high T, making phonons.

  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
4
Views
11K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
2
Views
580
Replies
1
Views
1K
Replies
1
Views
3K
Replies
1
Views
742
  • Last Post
Replies
5
Views
11K
Replies
2
Views
3K
Top