Pregled bibliografske jedinice broj: 9330
Tunneling barrier reduction and asymmetry in scanning tunneling microscope due to dynamical screening
Tunneling barrier reduction and asymmetry in scanning tunneling microscope due to dynamical screening // Solid state communications, 98 (1996), 5; 375-378 doi:10.1016/0038-1098(96)00120-2 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 9330 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Tunneling barrier reduction and asymmetry in scanning
tunneling microscope due to dynamical screening
Autori
Šestović, Dragan ; Šunjić, Marijan
Izvornik
Solid state communications (0038-1098) 98
(1996), 5;
375-378
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
surfaces and interfaces ; scanning tunneling microscope ; tunneling ; dielectric response
Sažetak
We find the three-dimensional potential barrier in the scanning tunneling microscope (STM), by calculating the interaction of the tunneling electron with surface plasmon oscillations (SPO) in the coupled tip-sample system with different metals. The barrier is lowered in the region near the tip apex which leads to focusing of the tunneling current and increased lateral STM sensitivity. We also explain the asymmetrical current-voltage (I-V) curves arising from the difference in curvatures and bulk plasmon frequencies of the tip and sample.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
