Auger stimulated ion desorption of negative ions via K-capture radioactive decay

S V  Verkhoturov; E A  Schweikert; V  Chechik; R C  Sabapathy; R M  Crooks; E S  Parilis

doi:10.1103/PhysRevLett.87.037601

Auger stimulated ion desorption of negative ions via K-capture radioactive decay

S V Verkhoturov, E A Schweikert, V Chechik, R C Sabapathy, R M Crooks, E S Parilis

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

We report an Auger stimulated ion desorption via Coulomb explosion from surface self-assembled alkylthiol and fluorocarbon molecular layers, triggered by K-capture decay of an imbedded radioactive Fe-55 atom. The charge state of the ejects is determined by charge exchange in binary atomic collisions in bulk and electron tunneling outside the solid, as well as by fragmentation of electronically excited molecules or molecular fragments. We describe the first nonbeam experiments documenting positive and abundant negative ion desorption due solely to core electron excitation after radioactive decay.

Original language	English
Pages (from-to)	-
Number of pages	4
Journal	Physical Review Letters
Volume	8703
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.87.037601
Publication status	Published - 16 Jul 2001

Keywords

CHARGED IONS
CORE
EXCITATION
MOLECULE
ENERGY
PROBE
SLOW

Access to Document

10.1103/PhysRevLett.87.037601

Cite this

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title = "Auger stimulated ion desorption of negative ions via K-capture radioactive decay",

abstract = "We report an Auger stimulated ion desorption via Coulomb explosion from surface self-assembled alkylthiol and fluorocarbon molecular layers, triggered by K-capture decay of an imbedded radioactive Fe-55 atom. The charge state of the ejects is determined by charge exchange in binary atomic collisions in bulk and electron tunneling outside the solid, as well as by fragmentation of electronically excited molecules or molecular fragments. We describe the first nonbeam experiments documenting positive and abundant negative ion desorption due solely to core electron excitation after radioactive decay.",

keywords = "CHARGED IONS, CORE, EXCITATION, MOLECULE, ENERGY, PROBE, SLOW",

author = "Verkhoturov, {S V} and Schweikert, {E A} and V Chechik and Sabapathy, {R C} and Crooks, {R M} and Parilis, {E S}",

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AU - Verkhoturov, S V

AU - Schweikert, E A

AU - Chechik, V

AU - Sabapathy, R C

AU - Crooks, R M

AU - Parilis, E S

PY - 2001/7/16

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N2 - We report an Auger stimulated ion desorption via Coulomb explosion from surface self-assembled alkylthiol and fluorocarbon molecular layers, triggered by K-capture decay of an imbedded radioactive Fe-55 atom. The charge state of the ejects is determined by charge exchange in binary atomic collisions in bulk and electron tunneling outside the solid, as well as by fragmentation of electronically excited molecules or molecular fragments. We describe the first nonbeam experiments documenting positive and abundant negative ion desorption due solely to core electron excitation after radioactive decay.

AB - We report an Auger stimulated ion desorption via Coulomb explosion from surface self-assembled alkylthiol and fluorocarbon molecular layers, triggered by K-capture decay of an imbedded radioactive Fe-55 atom. The charge state of the ejects is determined by charge exchange in binary atomic collisions in bulk and electron tunneling outside the solid, as well as by fragmentation of electronically excited molecules or molecular fragments. We describe the first nonbeam experiments documenting positive and abundant negative ion desorption due solely to core electron excitation after radioactive decay.

KW - CHARGED IONS

KW - CORE

KW - EXCITATION

KW - MOLECULE

KW - ENERGY

KW - PROBE

KW - SLOW

U2 - 10.1103/PhysRevLett.87.037601

DO - 10.1103/PhysRevLett.87.037601

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VL - 8703

SP - -

JO - Physical Review Letters

JF - Physical Review Letters

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