Magnetism of radiation-damaged LiF

A. Van Den Bosch

doi:10.1016/0022-3697(64)90044-7

Magnetism of radiation-damaged LiF

A. Van Den Bosch

Research output › peer-review

Abstract

The absolute magnetic susceptibility of lithium fluoride single crystals, irradiated with thermal neutrons, was found to consist of three parts: (1) a diamagnetic part, χ_d = - 0.408 × 10^-6 emu/g, due to the normal LiF matrix; (2) a temperature-dependent paramagnetic part, obeying the Curie law, attributed to unpaired electrons; and (3) a temperature-independent paramagnetic part arising from the presence of metallic lithium. The data obtained on crystals irradiated to doses between 8 × 10¹³ and 8 × 10¹⁸ neutrons cm² are discussed from the point of view of radiation damage. Optical absorption, X-ray, and density measurements were performed on samples of known susceptibility. These data as well as those available in the literature were used to correlate all of the observed processes. The radiation damage phenomena can be understood qualitatively if one assumes that primary defects are created continuously during neutron irradiation. The various physical effects are then explained by the ways in which those defects can agglomerate.

Original language	English
Pages (from-to)	1293-1304
Number of pages	12
Journal	Journal of Physics and Chemistry of Solids
Volume	25
Issue number	12
DOIs	https://doi.org/10.1016/0022-3697(64)90044-7
State	Published - Dec 1964

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1016/0022-3697(64)90044-7

Cite this

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title = "Magnetism of radiation-damaged LiF",

abstract = "The absolute magnetic susceptibility of lithium fluoride single crystals, irradiated with thermal neutrons, was found to consist of three parts: (1) a diamagnetic part, χd = - 0.408 × 10-6 emu/g, due to the normal LiF matrix; (2) a temperature-dependent paramagnetic part, obeying the Curie law, attributed to unpaired electrons; and (3) a temperature-independent paramagnetic part arising from the presence of metallic lithium. The data obtained on crystals irradiated to doses between 8 × 1013 and 8 × 1018 neutrons cm2 are discussed from the point of view of radiation damage. Optical absorption, X-ray, and density measurements were performed on samples of known susceptibility. These data as well as those available in the literature were used to correlate all of the observed processes. The radiation damage phenomena can be understood qualitatively if one assumes that primary defects are created continuously during neutron irradiation. The various physical effects are then explained by the ways in which those defects can agglomerate.",

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N2 - The absolute magnetic susceptibility of lithium fluoride single crystals, irradiated with thermal neutrons, was found to consist of three parts: (1) a diamagnetic part, χd = - 0.408 × 10-6 emu/g, due to the normal LiF matrix; (2) a temperature-dependent paramagnetic part, obeying the Curie law, attributed to unpaired electrons; and (3) a temperature-independent paramagnetic part arising from the presence of metallic lithium. The data obtained on crystals irradiated to doses between 8 × 1013 and 8 × 1018 neutrons cm2 are discussed from the point of view of radiation damage. Optical absorption, X-ray, and density measurements were performed on samples of known susceptibility. These data as well as those available in the literature were used to correlate all of the observed processes. The radiation damage phenomena can be understood qualitatively if one assumes that primary defects are created continuously during neutron irradiation. The various physical effects are then explained by the ways in which those defects can agglomerate.

AB - The absolute magnetic susceptibility of lithium fluoride single crystals, irradiated with thermal neutrons, was found to consist of three parts: (1) a diamagnetic part, χd = - 0.408 × 10-6 emu/g, due to the normal LiF matrix; (2) a temperature-dependent paramagnetic part, obeying the Curie law, attributed to unpaired electrons; and (3) a temperature-independent paramagnetic part arising from the presence of metallic lithium. The data obtained on crystals irradiated to doses between 8 × 1013 and 8 × 1018 neutrons cm2 are discussed from the point of view of radiation damage. Optical absorption, X-ray, and density measurements were performed on samples of known susceptibility. These data as well as those available in the literature were used to correlate all of the observed processes. The radiation damage phenomena can be understood qualitatively if one assumes that primary defects are created continuously during neutron irradiation. The various physical effects are then explained by the ways in which those defects can agglomerate.

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