Talk:Fermi surface

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia

I think a good start for the first sentence would be: "In condensed matter physics, the Fermi surface is the isoenergetic surface (a surface where the energy is constant) in reciprocal space that contains the highest energy electrons at zero temperature Rafaeldelgrande

This article was the subject of a Wiki Education Foundation-supported course assignment, between 7 January 2022 and 18 March 2022. Further details are available on the course page. Student editor(s): PhuongLe99, Rchltnn (article contribs).

The first sentence "In condensed matter physics, the Fermi surface is the surface in reciprocal space which separates occupied from unoccupied electron states at zero temperature." is just plain wrong. Even at k-points outside of the Fermi surface states will be occupied. Just less occupied.

Two points of note: I have taken the liberty of removing the "stub" designation; I have reused my figure from "spin density wave." I would have made a new figure for this article, but off the top of my head couldn't come up with anything better anyway. -- Alison Chaiken 03:05, 26 December 2005 (UTC)[reply]

Just a question: why isn't there a "+ 1" in the denominator of the first equation? JMB3501 (talk) 21:16, 4 November 2009 (UTC)[reply]

Useful in semiconductors?[edit]

If the Fermi level is inside a band gap, as in a semiconductor, doesn't that mean that the Fermi surface is empty or nonexistent? --Nanite (talk) 12:41, 15 June 2013 (UTC)[reply]

Yes. Only metals do have a Fermi surface. In fact ‘material with a Fermi surface’ is one physically consistent definition of a metal. — Preceding unsigned comment added by Hinkeldörnchen (talk • contribs) 05:46, 8 September 2016 (UTC)[reply]

External links modified[edit]

Hello fellow Wikipedians,

I have just modified 2 external links on Fermi surface. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 06:48, 20 December 2017 (UTC)[reply]

Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Fermi_surface&oldid=1194757136"