Questions tagged [one-dimension]

Questions involving the modeling of systems in one dimension, such as 1D Ising models, 1D Hubbard models, or even carbon nanotubes.

Filter by
Sorted by
Tagged with
22
votes
3answers
144 views

What are examples of materials that closely correspond to the Heisenberg model?

I use the antiferromagnetic Heisenberg model all the time: $ H = J \sum \limits_{\langle i,j \rangle} \vec S_i \cdot \vec S_j$ What are some examples of materials that are well-described by this ...
12
votes
2answers
46 views

How does magnetic anisotropy cause stable long range magnetic ordering in quasi-one-dimensional solids?

According to Mermin-Wagner theorem ferro/antiferromagnetic ordering cannot occur in ideal one dimensional systems. However there exists quasi-one-dimensional ferromagnetic materials attributing its ...