Universality in the three-dimensional random bond quantum Heisenberg antiferromagnet
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Physical Soc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The three-dimensional quenched random bond diluted (J(1) - J(2)) quantum Heisenberg antiferromagnet is studied on a simple-cubic lattice. Using extensive stochastic series expansion quantum Monte Carlo simulations, we perform very long runs for an LxLxL lattice up to L = 48. By employing a standard finite-size scaling method, the numerical values of the Neel temperature are determined with high precision as a function of the coupling ratio r = J(2)/J(1). Based on the estimated critical exponents, we find that the critical behavior of the considered model belongs to the pure classical three-dimensional O(3) Heisenberg universality class.
Açıklama
Anahtar Kelimeler
Phase-Transition, Monte-Carlo, Disorder, Fluctuations, Temperature, Impurities, Order
Kaynak
Physical Review B
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
102
Sayı
6
