This article is cited in 1 paper

Variation of ion current composition during field evaporation of some binary and ternary compounds

O. L. Golubev, M. V. Loginov

Ioffe Institute, St. Petersburg

Abstract: The process of field evaporation of ion emitters made of binary (Mo–Re) and ternary (Hf–Mo–Re) alloys has been experimentally studied. Depending on the field-ion emitter pretreatment by heating to high temperatures in the presence of strong electric fields, it is possible to ensure the emission of ion fluxes with variable ion type and charge compositions with respect to all components of the initial alloy or compound as well as ions the fluxes of separate components. Using alloys and complex compounds as field-emitter materials, it is possible to create sources of ion fluxes with variable compositions and masses from the same emitter and sources of elements from which it is technically difficult or even impossible to make point emitters directly.

Received: 12.04.2011

 English version: Technical Physics Letters, 2011, 37:8, 769–771

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