Your browser doesn't support javascript.
loading
Quantifying electric field gradient fluctuations over polymers using ultrasensitive cantilevers.
Yazdanian, Showkat M; Hoepker, Nikolas; Kuehn, Seppe; Loring, Roger F; Marohn, John A.
Afiliação
  • Yazdanian SM; Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA.
Nano Lett ; 9(6): 2273-9, 2009 Jun.
Article em En | MEDLINE | ID: mdl-19435337
An ultrasensitive cantilever, oscillating parallel to a surface in vacuum, is used to probe weak thermal electric field gradient fluctuations over thin polymer films. We measure the power spectrum of cantilever frequency fluctuations as a function of cantilever height and voltage over polymers of various compositions and thicknesses. The data are well described by a linear-response theory that calculates stochastic electric fields arising from thermally driven dielectric fluctuations.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nano Lett Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nano Lett Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Estados Unidos