Defect-related relaxation processes in irradiated rare gas solids

E. V. Savchenko; O. N. Grigorashchenko; G. B. Gumenchuk; A. N. Ogurtsov; M. Frankowski; A. M. Smith-Gicklhorn; V. E. Bondybey

doi:10.1080/10420150215794

Defect-related relaxation processes in irradiated rare gas solids

E. V. Savchenko, O. N. Grigorashchenko, G. B. Gumenchuk, A. N. Ogurtsov, M. Frankowski, A. M. Smith-Gicklhorn, V. E. Bondybey

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Abstract

Electronic and atomic relaxation processes in preirradiated solid Ar doped with N₂ were studied with a focus on the role of radiative electronic transitions in relaxation cascades. Combining methods of activation spectroscopy -thermally stimulated and photon-stimulated exoelectron emission, a new channel of relaxation induced by photon emission from metastable N atoms was detected. It was shown that in insulating materials with a wide conduction band photons of visible range can release electrons from both kinds of traps - shallow (lattice defects) and deep thermally disconnected ones. Correlation in the charge recombination reaction yield and the yield of low temperature desorption - important relaxation channel in a preirradiated solid - clearly demonstrates interconnection between atomic and electronic processes of relaxation.

Original language	English
Pages (from-to)	729-735
Number of pages	7
Journal	Radiation Effects and Defects in Solids
Volume	157
Issue number	6-12
DOIs	https://doi.org/10.1080/10420150215794
State	Published - 2002

Keywords

Activation spectroscopy
Desorption
Electron emission
Rare gas solids
Recombination

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title = "Defect-related relaxation processes in irradiated rare gas solids",

abstract = "Electronic and atomic relaxation processes in preirradiated solid Ar doped with N2 were studied with a focus on the role of radiative electronic transitions in relaxation cascades. Combining methods of activation spectroscopy -thermally stimulated and photon-stimulated exoelectron emission, a new channel of relaxation induced by photon emission from metastable N atoms was detected. It was shown that in insulating materials with a wide conduction band photons of visible range can release electrons from both kinds of traps - shallow (lattice defects) and deep thermally disconnected ones. Correlation in the charge recombination reaction yield and the yield of low temperature desorption - important relaxation channel in a preirradiated solid - clearly demonstrates interconnection between atomic and electronic processes of relaxation.",

keywords = "Activation spectroscopy, Desorption, Electron emission, Rare gas solids, Recombination",

author = "Savchenko, {E. V.} and Grigorashchenko, {O. N.} and Gumenchuk, {G. B.} and Ogurtsov, {A. N.} and M. Frankowski and Smith-Gicklhorn, {A. M.} and Bondybey, {V. E.}",

note = "Funding Information: The authors thank Dr. P. Feulner for valuable discussions. E.V.S. would like to acknowledge BMBF for travel grant.",

year = "2002",

doi = "10.1080/10420150215794",

language = "English",

volume = "157",

pages = "729--735",

journal = "Radiation Effects and Defects in Solids",

issn = "1042-0150",

publisher = "Taylor and Francis Ltd.",

number = "6-12",

}

TY - JOUR

T1 - Defect-related relaxation processes in irradiated rare gas solids

AU - Savchenko, E. V.

AU - Grigorashchenko, O. N.

AU - Gumenchuk, G. B.

AU - Ogurtsov, A. N.

AU - Frankowski, M.

AU - Smith-Gicklhorn, A. M.

AU - Bondybey, V. E.

N1 - Funding Information: The authors thank Dr. P. Feulner for valuable discussions. E.V.S. would like to acknowledge BMBF for travel grant.

PY - 2002

Y1 - 2002

N2 - Electronic and atomic relaxation processes in preirradiated solid Ar doped with N2 were studied with a focus on the role of radiative electronic transitions in relaxation cascades. Combining methods of activation spectroscopy -thermally stimulated and photon-stimulated exoelectron emission, a new channel of relaxation induced by photon emission from metastable N atoms was detected. It was shown that in insulating materials with a wide conduction band photons of visible range can release electrons from both kinds of traps - shallow (lattice defects) and deep thermally disconnected ones. Correlation in the charge recombination reaction yield and the yield of low temperature desorption - important relaxation channel in a preirradiated solid - clearly demonstrates interconnection between atomic and electronic processes of relaxation.

AB - Electronic and atomic relaxation processes in preirradiated solid Ar doped with N2 were studied with a focus on the role of radiative electronic transitions in relaxation cascades. Combining methods of activation spectroscopy -thermally stimulated and photon-stimulated exoelectron emission, a new channel of relaxation induced by photon emission from metastable N atoms was detected. It was shown that in insulating materials with a wide conduction band photons of visible range can release electrons from both kinds of traps - shallow (lattice defects) and deep thermally disconnected ones. Correlation in the charge recombination reaction yield and the yield of low temperature desorption - important relaxation channel in a preirradiated solid - clearly demonstrates interconnection between atomic and electronic processes of relaxation.

KW - Activation spectroscopy

KW - Desorption

KW - Electron emission

KW - Rare gas solids

KW - Recombination

UR - http://www.scopus.com/inward/record.url?scp=0142016554&partnerID=8YFLogxK

U2 - 10.1080/10420150215794

DO - 10.1080/10420150215794

M3 - Article

AN - SCOPUS:0142016554

SN - 1042-0150

VL - 157

SP - 729

EP - 735

JO - Radiation Effects and Defects in Solids

JF - Radiation Effects and Defects in Solids

IS - 6-12

ER -

Defect-related relaxation processes in irradiated rare gas solids

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Keywords

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