Cantilever effects on electrostatic force gradient microscopy

Sacha, G. M.; Sáenz, J. J.
September 2004
Applied Physics Letters;9/27/2004, Vol. 85 Issue 13, p2610
Academic Journal
The effects of the cantilever on electrostatic force microscopy are discussed. Numerical calculations of the electrostatic potential distribution and force gradient for typical experimental geometries are presented. A simple analytical relation between the calculated force gradients with and without cantilever is found. The main effect of the cantilever is to reduce the electric field in the tip-sample gap and, as a consequence, the force gradient can be strongly reduced. This effect can be very important for dielectric films while it can be neglected for metallic samples.


Related Articles

  • Atomic scale trap state characterization by dynamic tunneling force microscopy. Wang, R.; King, S. W.; Williams, C. C. // Applied Physics Letters;8/4/2014, Vol. 105 Issue 5, p1 

    Dynamic tunneling force microscopy (DTFM) is applied to the study of point defects in an inter-layer dielectric film. A recent development enables simultaneous acquisition of DTFM, surface potential, and topographic images while under active height feedback control. The images show no clear...

  • Surface morphology of ion-irradiated Fe films. Avasthi, D.K.; Ghosh, S.; Ganesan, V.; Gupta, A.; Mieskes, H.D.; Huber, H.; Assmann, W. // Applied Physics A: Materials Science & Processing;1998, Vol. 66 Issue 7, pS1137 

    Abstract. The surface morphology of thin (60 nm) Fe films irradiated with 243 MeV Au ions has been investigated using atomic force microscopy (AFM). The surface roughness was increased by the ion irradiation. The changes in the Fe content during ion irradiation were monitored by ERDA. A large...

  • Thickness dependence of the effective dielectric constant in a thin film capacitor. Natori, Kenji; Otani, Daijiro; Sano, Nobuyuki // Applied Physics Letters;8/3/1998, Vol. 73 Issue 5 

    The static value of the effective dielectric constant in a thin film capacitor is simulated by means of the local field theory. The value of it shows a sharp decrease as the film thickness is decreased in an ultrathin film geometry. This phenomenon is due to the size effect intrinsic to a thin...

  • Double negative in flexural single metal layer at visible frequencies. Hu, C.; Chen, X.; Feng, Q.; Luo, X. // Applied Physics B: Lasers & Optics;May2010, Vol. 99 Issue 3, p499 

    We theoretically investigate a thin single metal layer covered on sub-wavelength dielectric grating. Numerical simulations show that the structure has negative index in the normal direction at visible frequencies. Structural investigation demonstrates that the simultaneous negative permittivity...

  • Transmission and absorption of metallic films coated with corrugated dielectric layers. Dezhuan Han; Fengqin Wu; Xin Li; Chun Xu; Xiaohan Liu; Jian Zi // Applied Physics Letters;8/28/2006, Vol. 89 Issue 9, p091104 

    The authors study theoretically the optical properties of planar metallic films coated with periodically corrugated dielectric layers. Their calculations show that the transmission and absorption for these coated metallic films are enhanced considerably with respect to the uncoated ones....

  • Spectroscopy of surface plasmons in metal films with nanostructures. Vlasko-Vlasov, V.; Rydh, A.; Pearson, J.; Welp, U. // Applied Physics Letters;4/24/2006, Vol. 88 Issue 17, p173112 

    The direct measurement of local surface plasmon polariton spectra in micron-sized areas of metal films is implemented through the near-field imaging of two-dimensional plasmon interference patterns. The plasmons are generated at circular nanoslits. The period of their interference yields the...

  • Hyper-Rayleigh Light Scattering in the Third Harmonic Generation in Silver Island Films. Kim, E. M.; Elovikov, S. S.; Aktsipetrov, O. A. // JETP Letters;2/25/2003, Vol. 77 Issue 4, p158 

    Hyper-Rayleigh scattering in the third harmonic generation (incoherent optical third harmonic) was experimentally observed in spatially inhomogeneous, quasi-two-dimensional structures formed by silver island films. A comprehensive analysis of the linear and nonlinear light scattering in...

  • Confined and interface phonon modes in GaN/ZnO heterostructures. Chen Chen; Dutta, Mitra; Stroscio, Michael A. // Journal of Applied Physics;3/1/2004, Vol. 95 Issue 5, p2540 

    Confined and interface optical phonon modes in type II GaN/ZnO heterostructures are investigated in this paper. The optical phonon frequencies of the würtzite semiconductors GaN and ZnO are calculated as a function of angular variation with respect to the c-axis of these wurtzite crystals....

  • Quantitative microwave evanescent microscopy of dielectric thin films using a recursive image charge approach. Chen Gao; Bo Hu; Pu Zhang; Mengming Huang; Wenhan Liu; Takeuchi, I. // Applied Physics Letters;6/7/2004, Vol. 84 Issue 23, p4647 

    A recursive image charge approach has been successfully developed for quantitative microwave microscopy of dielectric thin films using the scanning evanescent microwave microscope. With this approach and the recursion-to-circulation algorithm, frequency shift of the microscope as functions of...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics