Wave-Function Hybridization in Yu-Shiba-Rusinov Dimers.

Wave-Function Hybridization in Yu-Shiba-Rusinov Dimers.
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Yu-Shiba-Rusinov 二聚体的波函数杂交

DOI:
10.1103/physrevlett.120.156803
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发表时间:
2018
影响因子:
8.6
通讯作者:
Katharina J. Franke
Katharina J. Franke
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Michael Ruby;Benjamin W. Heinrich;Yang Peng;Felix von Oppen;Katharina J. Franke

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超导体上的磁性吸附物在超导间隙内引起局部束缚态。与原子轨道相比,即使在 3D 块状晶体中,这些 Yu-Shiba-Rusinov (YSR) 态也会缓慢地远离杂质衰减。在这里,我们使用扫描隧道光谱来研究超导 Pb(001) 表面上两个附近磁性 Mn 吸附原子之间的杂化。我们观察到杂交导致 YSR 态对称和反对称组合的形成。我们研究了二聚体波函数的结构和能量分裂如何取决于基础单体轨道的形状以及二聚体相对于 Pb 晶格的方向。
Magnetic adsorbates on superconductors induce local bound states within the superconducting gap. These Yu-Shiba-Rusinov (YSR) states decay slowly away from the impurity compared to atomic orbitals, even in 3D bulk crystals. Here, we use scanning tunneling spectroscopy to investigate their hybridization between two nearby magnetic Mn adatoms on a superconducting Pb(001) surface. We observe that the hybridization leads to the formation of symmetric and antisymmetric combinations of YSR states. We investigate how the structure of the dimer wave functions and the energy splitting depend on the shape of the underlying monomer orbitals and the orientation of the dimer with respect to the Pb lattice.
DOI: 10.1103/physrevb.77.174516
发表时间: 2008-05-01
期刊: PHYSICAL REVIEW B
影响因子: 3.7
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