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

Local density of states (LDOS) is

  1. May 24, 2009 #1

    I would like to know what local density of states (LDOS) is and what differences it has with projected density of states?

    Also, when we choose a smaller isolevel we have a denser local densities of states, why?

  2. jcsd
  3. May 26, 2009 #2
    Re: Ldos-pdos

    What is PDOS? Projected density of states? This is the first time I am hearing about it.

    LDOS is simply the density of states at a given location in space. Normally Density of Space calculations include all possible states, and LDOS gives local information.

    All those STM images of surfaces showing almost individual atoms are based on that. STM measures LDOS - so you get different current flow depending on your position.

    For a better description see:

    Datta, 2005, Quantum Transport
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook