Variational study of the neutron resonance mode in the cuprate superconductors

被引：39
|
作者：
Li, Tao [1 ]
Yang, Fan [2 ]
机构：
[1] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
[2] Beijing Inst Technol, Dept Phys, Beijing 100081, Peoples R China
来源：
PHYSICAL REVIEW B | 2010年 / 81卷 / 21期
关键词：
T-J MODEL; SCATTERING; ANTIFERROMAGNETISM; YBA2CU3O6+X; PHASE;
D O I：
10.1103/PhysRevB.81.214509
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Gutzwiller-type variational wave function is proposed for the neutron resonance mode in the cuprate superconductors. An efficient reweighting technique is devised to perform variational Monte Carlo simulation on the proposed wave function which is composed of linearly superposed Gutzwiller projected Slater determinants. The calculation, which involves no free parameter, predicts qualitatively correct behavior for both the energy and the spectral weight of the resonance mode as functions of doping.
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页数：8
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