2006/08/29 by Moshe Schechter, M. Schechter, P. C. E. Stamp +2 · 4 citations
Physics and Astronomy · #Complex Network Analysis Techniques #Quantum many-body systems #Theoretical and Computational Physics #cond-mat.dis-nn #cond-mat.stat-mech
paper · pdf · doi:10.1088/0953-8984/19/14/145218
published as J. Phys.: Condens. Matter 19 (2007) 145218. · 6 pages, 2 figures, to appear in J. Phys. Condens. Matter (proceedings of the HFM2006 conference)
arxiv created 2006/08/29 · openalex publication_date 2007/03/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
The spin-glass phase in the LiHo x Y 1− x F 4 compound is considered. At zero transverse field this system is well described by the classical Ising model. At finite transverse field deviations from the transverse field quantum Ising model are significant, and one must take properly into account the hyperfine interactions, the off-diagonal terms in the dipolar interactions, and details of the full J = 8 spin Hamiltonian to obtain the correct physical picture. In particular, the system is not a spin glass at finite transverse fields and does not show quantum criticality.