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利用有效场理论研究了纳米管上双模随机同向晶场中混合自旋Blume-Capel模型格点的平均磁化强度，得到了系统格点的平均磁化强度与双模随机晶场的取值概率、外磁场、晶场参数和晶场强度比值的关系。结果表明：取值概率、外磁场、交换相互作用、晶场强度比值和晶场强度等诸多因素相互竞争，使系统表现出比恒定晶场作用的Blume-Capel模型更为丰富的磁化现象；双模随机同向晶场会抑制系统的平均磁化强度，使其基态...
‘Spooky’ Sightings in Crystal Point to Extremely Rare Quantum Spin Liquid
Spooky Sightings Crystal Point Quantum Spin Liquid
2016/12/13
Inside a new exotic crystal, physicist Martin Mourigal has observed strong indications of “spooky” action, and lots of it. The results of his experiments, if corroborated over time, would mean th...
Valence-bond crystal in the extended Kagomé spin-1/2 quantum Heisenberg antiferromagnet: A variational Monte Carlo approach
Valence-bond crystal extended Kagomé spin-1/2 quantum variational Monte Carlo approach
2010/11/24
The highly-frustrated spin-1=2 quantum Heisenberg model with both nearest (J1) and next-
nearest (J2) neighbor exchange interactions is revisited by using an extended variational space
of projected ...
Phase Structure of Anisotropic Antiferromagnetic Heisenberg Model on Layered Triangular Lattice: Spiral State and Deconfined Spin Liquid
Phase Structure Deconfined Spin Liquid
2010/10/27
In the present paper, we study spin- 1 2 antiferromagnetic (AF) Heisenberg model on layered anisotropic triangular lattice and obtain its phase structure. We use the Schwinger bosons for representing ...