TITLE

Electronic insulator-conductor conversion in hydride ion-doped 12CaO·7Al2O3 by electron-beam irradiation

AUTHOR(S)
Hayashi, Katsuro; Toda, Yoshitake; Kamiya, Toshio; Hirano, Masahiro; Yamanaka, Minako; Tanaka, Isao; Yamamoto, Takahisa; Hosono, Hideo
PUB. DATE
January 2005
SOURCE
Applied Physics Letters;1/10/2005, Vol. 86 Issue 2, p022109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report formation of persistent carrier electrons in hydride ion (H-)-incorporated 12CaO·7Al2O3 (C12A7) by electron-beam irradiation. The electrical conductivity of H--doped C12A7 single crystals increases with the electron-beam irradiation dose, accompanied with a green coloration attributable to a carrier electron formation. A 25 keV electron beam with a dose of ∼500 μC cm-2 fully converts the conductivity in surface layers to the depth of ∼4 μm. Carrier electron formation is most likely due to electron-hole pairs generated in the electron excitation volume and subsequent energy transfer to the H- ions. The estimated carrier formation yield per an incident electron is ∼30. These findings may enable a fine patterning of the conductive area without photomasks and photoresists.
ACCESSION #
15644095

 

Related Articles

  • Quantitative measurement of surface potential and amount of charging on insulator surface under electron beam irradiation. Mizuhara, Y.; Kato, J.; Nagatomi, T.; Takai, Y.; Inoue, M. // Journal of Applied Physics;11/15/2002, Vol. 92 Issue 10, p6128 

    Surface potential and the amount of charging on an insulator surface under electron beam irradiation have been quantitatively measured. For these measurements, a special sample holder was developed. The surface potential was measured using a secondary electron method. The measurement of the...

  • Initiation of vacuum insulator surface high-voltage flashover with electrons produced by laser illumination. Krasik, Ya. E.; Leopold, J. G. // Physics of Plasmas;Aug2015, Vol. 22 Issue 8, p1 

    In this paper, experiments are described in which cylindrical vacuum insulator samples and samples inclined at 45° relative to the cathode were stressed by microsecond timescale high-voltage pulses and illuminated by focused UV laser beam pulses. In these experiments, we were able to...

  • A size-dependent nanoscale metal-insulator transition in random materials. Chen, Albert B. K.; Soo Gil Kim; Yudi Wang; Wei-Shao Tung; I-Wei Chen // Nature Nanotechnology;Apr2011, Vol. 6 Issue 4, p237 

    Insulators and conductors with periodic structures can be readily distinguished, because they have different band structures, but the differences between insulators and conductors with random structures are more subtle. In 1958, Anderson provided a straightforward criterion for distinguishing...

  • Temperature—Concentration Effect in Insulator—Conductor Systems. Sotskov, V. A. // Technical Physics;Sep2005, Vol. 50 Issue 9, p1162 

    A study of the bulk resistivity and permittivity of several insulator–conductor macrosystems versus the conducting component concentration and temperature has revealed an anomalous concentration range. A qualitative model accounting for these dependences on the basis of the percolation...

  • 100 YEARS OF SEMICONDUCTOR SCIENCE: THE UKRAINIAN CONTRIBUTION. Lytovchenko, V. G.; Strikha, M. V. // Europhysics News;Jan/Feb2014, Vol. 45 Issue 1, p15 

    How old is semiconductor science? The answer is not obvious even for researchers who worked in this field for their whole life. Mankind has been dealing with semiconductors like silicon for centuries - although not with their electrical properties. The first electrical experiments with...

  • Organic electronics: When TTF met TCNQ. Kirtley, John R.; Mannhart, Jochen // Nature Materials;Jul2008, Vol. 7 Issue 7, p520 

    The article focuses on the direct mechanical contact of the two crystal tetrathiofulvalene (TTF) and tetracyanoquinodimethane (TCNQ). It states that stable and reproducible conducting layers can be obtained by mechanically pressing two single crystals together. It adds that the observation of...

  • Flashover in wide-band-gap high-purity insulators: Methodology and mechanisms. Le Gressus, C.; Valin, F.; Henriot, M.; Gautier, M.; Duraud, J. P.; Sudarshan, T. S.; Bommakanti, R. G.; Blaise, G. // Journal of Applied Physics;5/1/1991, Vol. 69 Issue 9, p6325 

    Discusses the methodology and mechanisms of flashover in wide-band-gap high-purity insulators. Use of the electron beam of a scanning electron microscope; Charging mechanism of insulators; Analysis of the diffusion of hot electrons in wide-band-gap insulators.

  • Contribution à l'étude des effets de charge sur l'émission X des matériaux isolants non métallisés. Raouadi, K.; Renoud, R; Askri, B.; Yangui, B.; Fakhfakh, Z. // Canadian Journal of Physics;Jun2002, Vol. 80 Issue 6, p661 

    The presence of charges perturbs the X-microanalysis on insulator samples. Attempts to suppress these effects have been fruitless and a better understanding of the charge phenomenon is the only way t o a clear interpretation of the results of a X -microanalysis. From a simulation of the charges...

  • Propagation of a relativistic electron beam along an array of conductors. Rambo, P. W.; Denavit, J. // Journal of Applied Physics;7/15/1988, Vol. 64 Issue 2, p479 

    Presents a study which investigated the propagation of a relativistic electron beam parallel to an array of parallel conductors, which provided charge and current neutralization of the beam. Propagation of a relativistic electron beam along uniformly spaced parallel conducting foils; Discussion...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics