Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What is the lower limit of frequency range of acoustic phonon modes?

  1. Nov 3, 2014 #1
    Good day everyone.

    I would like to know about the lower limit of the frequency range of active acoustic phonon modes. Textbooks say it can reach zero. But I am curious about whether it can be very small, such as 1 micro volt or the like. Would a phonon mode of so small energy be of any significance to experimental results?
  2. jcsd
  3. Nov 3, 2014 #2
    Microvolts for frequency?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook