IDEAS home Printed from https://ideas.repec.org/a/eee/phsmap/v86y1977i2p417-428.html
   My bibliography  Save this article

First order green-function theory of isotropic Heisenberg ferromagnet

Author

Listed:
  • Kamieniarz, G.

Abstract

The Heisenberg ferromagnet with general spin S is considered within Green-function theory and spectral density method. New difference equations of the first order determining one- and two-particle correlation functions are derived and solved. The spectral density method is used to close Oguchi's variational theory without additional decoupling assumptions. The temperature renormalized spectrum is found to be a series expansion in that the first term coincide with RPA result and the first two terms correspond essentially to Callen's result. Low temperature expansions for the renormalization factor and the magnetization are given and shown to coincide with Callen's result.

Suggested Citation

  • Kamieniarz, G., 1977. "First order green-function theory of isotropic Heisenberg ferromagnet," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 86(2), pages 417-428.
  • Handle: RePEc:eee:phsmap:v:86:y:1977:i:2:p:417-428
    DOI: 10.1016/0378-4371(77)90038-3
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/0378437177900383
    Download Restriction: Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

    File URL: https://libkey.io/10.1016/0378-4371(77)90038-3?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Schaar, John H., 1962. "H. G. Wells and the World State. By W. Warren Wagar. (New Haven: Yale University Press, 1961. Pp. 301. $6.00.)," American Political Science Review, Cambridge University Press, vol. 56(1), pages 160-161, March.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lu, Pao, 1989. "Theory of superfluidity," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 159(1), pages 52-62.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:phsmap:v:86:y:1977:i:2:p:417-428. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/physica-a-statistical-mechpplications/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.