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

Oncel N., VAN HOUSELT A., HUIJBEN J., HALLBACK A., Gurlu O., ZANDVLIET H., ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.95, sa.11, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 95 Sayı: 11
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1103/physrevlett.95.116801
  • Dergi Adı: PHYSICAL REVIEW LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

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.