Electron–hole asymmetry in magnetic properties of lightly doped high-T_C superconductors: A quantum Monte Carlo study

详细信息    查看全文

• 作者：Yunoki ; Seiji ; Sorella ; Sandro
• 关键词：High-T_C cuprate ; t&ndash ; J model ; Quantum Monte Carlo ; Spin correlation
• 刊名：Physica C
• 出版年：2003
• 出版时间：May, 2003
• 年：2003
• 卷：388-389
• 期：Complete
• 页码：43-44
• 全文大小：105 K

文摘

Using a recently developed variational quantum Monte Carlo method, magnetic properties of high-T_C superconductors are studied at zero temperature (T), by numerical simulations on the 2D t–J model. Our focus here is to explore the difference in the properties of p- and n-type cuprates as a function of the carrier concentrations close to half filling. As observed experimentally, it is found that the antiferromagnetically ordered phase persists even for a small, yet finite amount of carrier doping, and that this phase is more robust in the electron-doped case.