Home > Papers

 
 
On effect of regular S=1 dilution of S=1/2 antiferromagnetic Heisenberg chains by a quantum Monte Carlo simulation
Jin Fengping,Xu Zhaoxin,Ying Heping,Zheng Bo
Zhejiang University
*Correspondence author
#Submitted by
Subject:
Funding: 教育部博士点基金（No.20020335064）
Opened online:13 December 2005
Accepted by: none
Citation: Jin Fengping,Xu Zhaoxin,Ying Heping.On effect of regular S=1 dilution of S=1/2 antiferromagnetic Heisenberg chains by a quantum Monte Carlo simulation[OL]. [13 December 2005] http://en.paper.edu.cn/en_releasepaper/content/4304
 
 
The effect of S1=1 regularly dilution in S2=1/2 isotropic antiferromagnetic chain is investigated by a quantum Monte Carlo simulation. Our numerical results show that two kinds of ground-state phases alternate with a variation of the S1=1 concentration. When the effective spin in one unit cell is half-integer the ground state is ferrimagnetic with gapless energy spectrum and the magnetism decreases with decreasing of spin S1 concentration,P=1/K. While the effective spin is integer, a non-magnetic ground state with a gapped spectrum is emerged, and the gap decays gradually in a tendency fitted as {1.25*(P)^0.5}.
Keywords:Monte Carlo simulation;antiferromagnetic spin chain; dilution
 
 
 

For this paper
  • ● PDF (0B)
  • ● Revision 0 　　
  • ● Print this paper
  • ● Recommend this paper to a friend
  • ● Add to my favorite list

    Saved Papers

    Please enter a name for this paper to be shown in your personalized Saved Papers list

Tags
Add yours

Related Papers

Statistics
PDF Downloaded 322
Bookmarked 0
Recommend 5
Comments Array
Submit your papers