DMRG and Monte Carlo studies of CrI3 magnetic phases and the phase transition

被引：0

作者：

Rzepkowski, Bartosz ^{[1
]}

Kupczynski, Michal ^{[1
]}

Potasz, Pawel ^{[2
]}

Wojs, Arakdiusz ^{[1
]}

机构：

[1] Wroclaw Univ Sci & Technol, Fac Fundamental Problems Technol, Dept Theoret Phys, PL-50370 Wroclaw, Poland

[2] Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Inst Phys, Grudziadzka 5, PL-87100 Torun, Poland

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2023年 / 146卷

关键词：

CrI3; DMRG; Monte Carlo; Phase transitions; Tensor networks; THERMAL-PROPERTIES; XXZ MODEL; MONOLAYER; FERROMAGNETISM; OPTOELECTRONICS; CRYSTAL; LATTICE; LAYERS;

D O I：

10.1016/j.physe.2022.115520

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The monolayer of CrI3 has been reported to exhibit the ferromagnetic order, with a Curie temperature of 45 K and off-plane easy axis, which has attracted much attention in the community of condensed matter physics. Using the Density Matrix Renormalization Group method, we investigate the role of correlation effects and using classical Monte Carlo simulations analyze the nature of phase transitions in the XXZ Hamiltonian on a honeycomb lattice, which can effectively model CrI3. We show, that the magnetic ordering of the Hamiltonian's ground state can be well approximated by classical models in a wide range of the anisotropy parameter space. Using classical Monte Carlo simulations we estimate the Curie temperature of 49.7 K which is in good agreement with experimental result.

引用

页数：8

共 87 条

[1] Effects of a random crystal field on the spin-2 Blume-Capel model [J].