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arXiv 1601.07214cond-mat.str-el
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具有非均匀导电电子配位的周期Anderson模型的磁关联

Magnetic Correlations in a Periodic Anderson Model with Non-Uniform Conduction Electron Coordination

Nicole Hartman, WeiTing Chiu, Richard Scalettar

摘要:

周期安德森模型(PAM)被广泛研究,以理解强关联物理,特别是反铁磁性和单态形成的竞争。量子蒙特卡罗(QMC)研究集中在诸如屏蔽的性质和在零温度下定位量子临界点(QCP)等问题上,以及从铈体积坍缩到磁化率和重费米子中奈特位移的关系等现象的可能实验联系上。在本文中,我们扩展QMC工作的晶格中的导电电子网站可以有可变的协调。这种情况与最近发现的磁性准晶和掺杂重费米子系统的磁性有关。

英文摘要:

The Periodic Anderson Model (PAM) is widely studied to understand strong correlation physics and especially the competition of antiferromagnetism and singlet formation. Quantum Monte Carlo (QMC) studies have focused both on issues such as the nature of screening and locating the quantum critical point (QCP) at zero temperature and also on possible experimental connections to phenomena ranging from the Cerium volume collapse to the relation of the magnetic susceptibility and Knight shift in heavy fermions. In this paper we extend QMC work to lattices in which the conduction electron sites can have variable coordination. This situation is relevant both to recently discovered magnetic quasicrystals and also to magnetism in doped heavy fermion systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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