Heisenberg antiferromagnetic model

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• Heisenberg model (quantum) — The Heisenberg model is a statistical mechanical model used in the study of critical points and phase transitions of magnetic systems, in which the spin of the magnetic systems are treated quantum mechanically. In the prototypical Ising model,… …   Wikipedia

• Dmrg of Heisenberg model — This example presents the infinite DMRG algorithm. It is about S = 1 antiferromagnetic Heisenberg chain, but the recipe can be applied for every translationally invariant one dimensional lattice. DMRG is a renormalization group technique because… …   Wikipedia

• Majumdar–Ghosh Model — The Majumdar Ghosh model is an extension of the one dimensional quantum Heisenberg spin model in which an extra interaction is added coupling spins two lattice spacings apart such that second neighbor coupling half as strong the first. It is… …   Wikipedia

• Ising model — The Ising model, named after the physicist Ernst Ising, is a mathematical model in statistical mechanics. It has since been used to model diverse phenomena in which bits of information, interacting in pairs, produce collectiveeffects.Definition… …   Wikipedia

• Exchange Bias — Als Exchange Bias (EB) bezeichnet man eine unidirektionale Anisotropie (deshalb auch unidirectional exchange anisotropy genannt), die durch die Kopplung zwischen einem Ferro und einem Antiferromagneten entsteht. Der Exchange Bias bewirkt eine… …   Deutsch Wikipedia

• Interacción de canje — Dos orbitales d de iones metálicos vecinos: la interacción de canje J se produce entre dos electrones con el mismo número cuántico de espín Ms, e impide que …   Wikipedia Español

• Magnetism — This article is about magnetic materials. For information about objects and devices that produce a magnetic field, see magnet. For fields that magnets and currents produce, see magnetic field. For other uses, see magnetism (disambiguation).… …   Wikipedia

• Spin wave — Spin waves are propagating disturbances in the ordering of magnetic materials. These low lying collective excitations occur in magnetic lattices with continuous symmetry. From the equivalent quasiparticle point of view, spin waves are known as… …   Wikipedia

• Bethe ansatz — In physics, the Bethe Ansatz is a method for finding the exact solutions of certain one dimensional quantum many body models. It was invented by Hans Bethe in 1931 to find the exact eigenvalues and eigenvectors of the one dimensional… …   Wikipedia

• QAFM — abbr. Quantum Antiferromagnetic (Heisenberg) Model …   Dictionary of abbreviations