Magnettiketjut
Magnettiketjut are one-dimensional arrangements of magnetic moments that interact primarily with nearest neighbors along a single spatial direction. They occur in certain inorganic crystals with chain-like structures, in conducting polymers that host localized spins, and in artificially constructed nanoscale structures such as atomically assembled spin chains on surfaces. The physics of magnettiketjut is dominated by quantum fluctuations and reduced dimensionality, making them a central subject in the study of low-dimensional magnetism.
The behavior of magnettiketjut is commonly described by spin models, notably the Ising, Heisenberg, or XY models,
Experimentally, quasi-one-dimensional magnets include copper-based oxides and molecular magnets; with advances in nanofabrication and atom manipulation,
See also: spin chain, quantum magnetism, Heisenberg model, Bethe ansatz, Haldane conjecture.