Quenched-vacancy induced spin-glass order
Author(s)Gulpinar, Gul; Berker, A. Nihat
MetadataShow full item record
The ferromagnetic phase of an Ising model in d=3, with any amount of quenched antiferromagnetic bond randomness, is shown to undergo a transition to a spin-glass phase under sufficient quenched bond dilution. This result, demonstrated here with the numerically exact global renormalization-group solution of a d=3 hierarchical lattice, is expected to hold true generally, for the cubic lattice and for quenched site dilution. Conversely, in the ferromagnetic–spin-glass–antiferromagnetic phase diagram, the spin-glass phase expands under quenched dilution at the expense of the ferromagnetic and antiferromagnetic phases. In the ferromagnetic–spin-glass phase transition induced by quenched dilution, reentrance as a function of temperature is seen, as previously found in the ferromagnetic–spin-glass transition induced by increasing the antiferromagnetic bond concentration.
DepartmentMassachusetts Institute of Technology. Department of Physics
Physical Review E
American Physical Society
Gulpinar, Gul, and A. Nihat Berker. “Quenched-vacancy induced spin-glass order.” Physical Review E 79.2 (2009): 021110. © 2009 The American Physical Society.
Final published version