Magnetic properties of small clusters as function of the geometry Article

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Overview

abstract

• The magnetic properties of the ground state of one- and two-dimensional small clusters (Na=16 sites) are studied solving exactly the Heisenberg Hamiltonian. We are interested in studying the magnetic behavior as a function of the lattice geometry. The total spin S shows an interesting behavior as a function of the ferromagnetic (antiferromagnetic) exchange interaction J1 > 0 (J2 < 0). Ferromagnetism is found to be stable for J2/J1 ≃ 0 - 0.4. © 2003 Published by Elsevier B.V.

authors

• López-Sandoval R.
• Pastor G.M.
• Reyes Reyes Marisol

publication date

• 2004-01-01

funding provided via

• Consejo Nacional de Ciencia y Tecnología, CONACYT: J-41452-F, W-8001  Grant

published in

• Journal of Magnetism and Magnetic Materials  Journal

Research

keywords

• Heisenberg Hamiltonian; Small cluster; Total spin S Antiferromagnetism; Approximation theory; Boundary conditions; Functions; Geometry; Hamiltonians; Magnetization; Polarization; Problem solving; Quantum theory; Next-nearest-neighbors (NNN); Periodic boundary conditions; Small cluster; Total spin S; Ferromagnetism

Identity

Digital Object Identifier (DOI)

• 10.1016/j.jmmm.2003.12.317

Additional Document Info

start page

• 1596

end page

• 1597

volume

• 272-276