Journal
PHYSICAL REVIEW B
Volume 86, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.86.184432
Keywords
-
Funding
- Swiss National Fund
- MaNEP
Ask authors/readers for more resources
We present Monte Carlo simulations for a classical antiferromagnetic Heisenberg model with both nearest (J(1)) and next-nearest (J(2)) exchange couplings on the square lattice in the presence of nonmagnetic impurities. We show that the order-by-disorder entropy selection, associated with the Ising-like phase transition that appears for J(2)/J(1) > 1/2 in the pure spin model, is quenched at low temperature due to the presence of nonmagnetic impurities. Evidence that a new competing order is stabilized around the impurities and in turn induces a reentrance phase transition is reported. Implications for local magnetic measurement of the parent compound of iron pnictides are briefly discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available