Department of Physics and Astronomy, University of California, Irvine, CA 92697-4575, USA.
Science. 2011 Jul 15;333(6040):324-8. doi: 10.1126/science.1205785.
Kondo lattice systems can exhibit unusual many-body behaviors that result from the interplay between onsite Kondo screening and intersite coupling. We used scanning tunneling microscopy to image the Kondo resonance in a nonconventional Kondo lattice formed by self-assembled oxygen (O(2)) molecules, which are paramagnetic, on the gold reconstructed surface [Au(110)-1×2]. The interplay between the intermolecular coupling for molecules adsorbed along chains and the onsite Kondo effect leads to the coexistence of both local and nonlocal Kondo screening at the atomic level. The latter provides evidence for collective deconfinement of magnetization induced in Au, whereas the former shows local "hybridization" between the Kondo clouds of nearest-neighbor O(2) molecules.
康登晶格系统可以表现出异常的多体行为，这是由于局域康登屏蔽和局间耦合的相互作用所致。我们使用扫描隧道显微镜来成像由自组装氧（O(2)）分子形成的非传统康登晶格中的康登共振，这些分子在金重构表面[Au(110)-1×2]上是顺磁的。沿链吸附的分子之间的分子间耦合与局域康登效应的相互作用导致原子级别的局部和非局部康登屏蔽同时存在。后者为在 Au 中诱导的磁化的集体去约束提供了证据，而前者则显示了最近邻 O(2)分子的康登云之间的局部“杂交”。
