title: Observation of the giant stark effect in boron-nitride nanotubes.
abstract: Bias dependent scanning tunneling microscopy and scanning tunneling spectroscopy have been used to characterize the influence of transverse electric fields on the electronic properties of boron-nitride nanotubes (BNNTs). We find experimental evidence for the theoretically predicted giant Stark effect. The observed giant Stark effect significantly reduces the band gap of BNNTs and thus greatly enhances the utility of BNNTs for nanoscale electronic, electromechanical, and optoelectronic applications.
authors.affiliation: Department of Physics, University of California at Berkeley, Berkeley, California 94720, USA.
authors.forename: Masa
authors.initials: M
authors.lastname: Ishigami
authors.forename: Jay Deep
authors.initials: JD
authors.lastname: Sau
authors.forename: Shaul
authors.initials: S
authors.lastname: Aloni
authors.forename: Marvin L
authors.initials: ML
authors.lastname: Cohen
authors.forename: A
authors.initials: A
authors.lastname: Zettl