Abstract
In a magnetic system, consistent with Griffiths analyticity requirements one can parameterize the equation of state near criticality by writing H = r β δ h ( θ ) , T = r t ( θ ) and the magnetization M = r β m ( θ ) , where T is measured from the critical temperature. For the insulating ferromagnet CrBr 3, the experimental data of Ho and Litster [J.T. Ho, J.D. Litster, Phys. Rev. Lett. 22 (1969) 603] is well fitted by m ( θ ) as a linear function of θ [P. Schofield, J.D. Litster, J.T. Ho, Phys. Rev. Lett. 23 (1969) 1098]. Also Ho and Litster give β = 0.368 , γ = 1.215 and δ = 4.3 . Those critical experiments are very close to the recent 3D Ising results of Zhang [Z.D. Zhang, Philos. Mag. 87 (2007) 5309], namely β = 3 / 8 , γ = 5 / 4 and δ = 13 / 3 . We therefore predict that m ( θ ) will be proportional to θ as a fingerprint of the 3D Ising Hamiltonian.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
