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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.

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25 votes
3 answers

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 ...
taciteloquence's user avatar
13 votes
2 answers

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 ...
Thomas's user avatar
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