Quantum confinement between self-organized Pt nanowires on Ge(001) -: art. no. 116801

被引:95
作者
Oncel, N [1 ]
van Houselt, A [1 ]
Huijben, J [1 ]
Hallbäck, AS [1 ]
Gurlu, O [1 ]
Zandvliet, HJW [1 ]
Poelsema, B [1 ]
机构
[1] Univ Twente, MESA Res Inst Nanotechnol, NL-7500 AE Enschede, Netherlands
关键词
D O I
10.1103/PhysRevLett.95.116801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The existence of one-dimensional (1D) electronic states between self-organized Pt nanowires spaced 1.6 or 2.4 nm apart on a Ge(001) surface is revealed by low-temperature scanning tunneling microscopy. These perfectly straight Pt nanowires act as barriers for a surface state (located just below the Fermi level) of the underlying terrace. The energy positions of the 1D electronic states are in good agreement with the energy levels of a quantum particle in a well. Spatial maps of the differential conductivity of the 1D electronic states conclusively reveal that these states are exclusively present in the troughs between the Pt nanowires.
引用
收藏
页数:4
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