One-dimensional electronic states at surfaces
One-dimensional electronic states at surfaces
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表面一维电子态
DOI：
10.1088/0953-8984/13/49/301
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
J. McChesney
中科院分区：
文献类型：
--
作者：
F. Himpsel;K. N. Altmann;R. Bennewitz;J. Crain;A. Kirakosian;J.;J. McChesney
一维电子系统现在可以通过原子和分子链的自组装在阶梯表面合成。各种各样的吸附物和基板的组合提供了机会，有系统地定制电子性能，如链内和链间耦合，电子计数，磁矩和库仑相互作用。同步辐射角分辨光电子能谱是揭示有序表面上电子的完整量子数，即能量、平行于表面的动量、自旋和点群对称性的理想探针。有趣的电子功能进行了讨论，如自旋电荷分离的Luttinger液体，电荷密度波，Peierls间隙，混合维数和一维量子阱状态。
One-dimensional electron systems can now be synthesized at stepped surfaces by self-assembly of atomic and molecular chains. A wide variety of adsorbate and substrate combinations provides opportunities for systematically tailoring electronic properties, such as the intra-chain and inter-chain coupling, the electron count, magnetic moment and the Coulomb interaction. Angle-resolved photoemission with synchrotron radiation is an ideal probe to reveal the complete set of quantum numbers for electrons at an ordered surface, i.e. energy, momentum parallel to the surface, spin and point group symmetry. Interesting electronic features are discussed, such as spin-charge separation in a Luttinger liquid, charge density waves, the Peierls gap, mixed dimensionality and one-dimensional quantum well states.