自旋冰的量子熔化：涌现的协同四极矩与手性
强关联电子
2010-07-26 v3
摘要
我们提出了烧绿石晶格磁体PrO（Ir, Zr, Sn）中自旋冰的量子熔化机制。在原子非克拉默斯磁双态基组下，推导了具有非平凡磁各向异性的量子超交换哈密顿量。基态展现出协同的铁四极矩和赝自旋手性，形成了近晶相液晶的磁类比物。我们的理论解释了PrO中实验观测到的动态自旋冰行为。
引用
@article{arxiv.0907.2536,
title = {Quantum Melting of Spin Ice: Emergent Cooperative Quadrupole and Chirality},
author = {Shigeki Onoda and Yoichi Tanaka},
journal= {arXiv preprint arXiv:0907.2536},
year = {2010}
}
备注
4 pages including 4 fgures; accepted for publication in Phys. Rev. Lett.; powder-neutron scatteing profile added in favorable comparison with experiment