Quantum confinement between self-organized Pt nanowires on Ge(001)

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Oncel, Nuri and Houselt van, Arie and Huijben, Jeroen and Hallbäck, Ann-Sofie and Gurlu, Oguzhan and Zandvliet, Harold J.W. and Poelsema, Bene (2005) Quantum confinement between self-organized Pt nanowires on Ge(001). Physical Review Letters, 95 (11). pp. 116801-1. ISSN 0031-9007

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Abstract: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.
Item Type:Article
Copyright:© 2005 The American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/53848
Official URL:http://dx.doi.org/10.1103/PhysRevLett.95.116801
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Metis ID: 227130