A physical realization of the two-dimensional Ising model

Ch Mürsch, U. Ramsperger, C. H. Back, A. Vaterlaus, U. Mair, D. Pescia

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

1 Zitat (Scopus)

Abstract

In 1925 E. Ising [1] introduced the first and most elementary statistical model of a macroscopic system with short range interactions. This model - named after its inventor - was solved analytically for the non-trivial case of the interacting particles located on a two-dimensional (2d) lattice by Onsager [2] in 1944. This model and its solution provided the fundamental guidelines for all further theoretical developments in the theory of phase transitions. Despite the importance of the 2d-Ising model in Physics the experimental evidence gathered on it is scarce and incomplete, partly due to the very difficulty of realizing a truly 2d system in our three-coordinates world. In this paper, we describe a 2d system consisting of atomically thin films of magnetic Fe deposited onto a non-magnetic W-substrate. We show that Fe/W (110) near the magnetic critical point follows closely the predictions of the 2d-Ising model. In addition, we present a comprehensive confirmation of scaling and universality.

OriginalspracheEnglisch
Seiten (von - bis)111-119
Seitenumfang9
FachzeitschriftTurkish Journal of Physics
Jahrgang21
Ausgabenummer1
PublikationsstatusVeröffentlicht - 1997
Extern publiziertJa

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