• Publications
  • Influence
Finite-size modifications of the magnetic properties of clusters.
The spin-wave spectrum of Heisenberg spin clusters of various structures (bcc, fcc, and disordered) ranging in size between 9 and 749 spins is calculated by a self-consistent diagonalization of theExpand
  • 203
  • 2
  • PDF
Theory of singlet-ground-state magnetism: Application to field-induced transitions in CsFeCl3 and CsFeBr3.
  • Lindgård, Schmid
  • Physics, Medicine
  • Physical review. B, Condensed matter
  • 1 November 1993
In the singlet ground-state systems CsFeCl 3 and CsFeBr 3 a large single-ion anisotropy causes a singlet ground state and a doubly degenerate doublet as the first excited states of the Fe 2+ ion. InExpand
  • 9
  • 1
Monte Carlo determination of heteroepitaxial misfit structures.
  • Baker, Lindgård
  • Materials Science, Medicine
  • Physical review. B, Condensed matter
  • 1 March 1996
We use Monte Carlo simulations to determine the structure of KBr overlayers on a NaCl(001) substrate, a system with large (17{percent}) heteroepitaxial misfit. The equilibrium relaxation structure isExpand
  • 8
  • 1
Substrate influence on two-dimensional solids and liquids: A Monte Carlo simulation study.
  • Vives, Lindgård
  • Physics, Medicine
  • Physical review. B, Condensed matter
  • 15 July 1991
Etude du melange d'une structure ∨3×∨3 incommensurable sur un reseau triangulaire avec un recouvrement d'1/3. On suit l'evolution de l'energie, des parametres d'ordre et du facteur de structure dansExpand
  • 10
Magic Numbers in Protein Structures.
  • Lindgård, Bohr
  • Physics, Medicine
  • Physical review letters
  • 22 July 1996
A homology measure for protein fold classes has been constructed by locally projecting consecutive secondary structures onto a lattice. Taking into account hydrophobic forces we have found aExpand
  • 23
  • PDF
Nuclear order in copper: New type of antiferromagnetism in an ideal fcc system.
A new ordering vector k=(2\ensuremath{\pi}/a)(0, 2/3, 2/3) for fcc antiferromagnets has been found by neutron-diffraction experiments at nanokelvin temperatures in the nuclear-spin system of aExpand
  • 29
Theory of adiabatic nuclear magnetic ordering in Cu.
  • Lindgård
  • Physics, Medicine
  • Physical review letters
  • 1 August 1988
Etude theorique du diagramme de phases pour la mise en ordre magnetique nucleaire de Cu dans un champ magnetique
  • 31
Estimation of electronic and structural influence on the thermal magnetic properties of clusters.
Using an effective Heisenberg model for clusters the spin-wave spectrum is calculated by direct diagonalization. The inclusion of a nonuniform magnetization profile at zero temperature, nonuniformExpand
  • 13
n=(1/4 domain-growth universality class: Crossover to the n=(1/2 class.
  • Castán, Lindgård
  • Physics, Medicine
  • Physical review. B, Condensed matter
  • 1 February 1990
L'exposant de la cinetique de croissance du domaine est etudie par simulation Monte Carlo en fonction de la temperature pour un modele de parametre d'ordre non conserve. Dans la limtie de laExpand
  • 1
Degenerate Blume-Emery-Griffiths model for the martensitic transformation.
A generalization of the Blume-Emery-Griffiths model is introduced in which an entropy stabilization of the high-temperature phase is controlled by a degeneracy parameter p>1. The model describes aExpand
  • 21
  • PDF