Neutron Scattering Study of Critical Phenomena in Restricted-Dimensional Magnets : Universality and Scaling

スポンサーリンク

概要

• 論文の詳細を見る

• By examining the neutron scattering studies, which we have carried out recently, of spontaneous (or sublattice) magnetization M_s(T), inverse correlation length κ_1 and staggered susceptibility χ(0) of four typical restricted-dimensional magnets K_2CoF_4, K_2CuF_4, KCuF_3 and K_2MnF_4, the hypotheses of scaling and universality are tested. Through a careful comparison of the experimentally obtained critical exponents, β, ν, γ and η, and the low-temperature magnetization with the theoretical values for any real model-Hamiltonian, we confirm the assertion that the critical exponents themselves depend only upon the dimensionality and the symmetry of order parameter. Our results show that the thermodynamic quantities of restricted-dimensional magnets have the same universal behavior even at low temperatures as well as in a critical region when the phase transition is caused by the same and only one mechanism.

• 社団法人日本物理学会の論文
• 1974-09-15

著者

• Ikeda Hironobu

  The Institute For Solid State Physics The University Of Tokyo

関連論文

• Critical Magnetic Scattering in K_2MnF_4
• Investigations of Two-Dimensional Ferromagnet K_2CuF_4 by Neutron Scattering
• Spin Correlations and Sublattice Magnetization of K_2CoF_4
• Observation of a Symmetric Logarithmic Singularity in the Specific Heat of K_2CoF_4
• Neutron Diffraction Study in One-Dimensional Antiferromagnet KCuF_3
• Observation of Spin Densities on Antibonding Orbitals in K_2CuF_4 by Neutron Diffuse Scattering
• Neutron Scattering Experiments on the Two-Dimensional Ferromagnet K_2CuF_4
• Elastic and Quasi-Elastic Neutron Scattering from K_2MnF_4 near the Critical Point
• Neutron Scattering Study of Critical Phenomena in Restricted-Dimensional Magnets : Universality and Scaling
• A Facile Cryostat for Neutron Diffraction Experiments

スポンサーリンク