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Tetragonal neptunium oxide telluride Np/sub 2/O/sub 2/Te: crystallographic and /sup 237/Np Mossbauer studies

Journal Article · · Mater. Res. Bull.; (United States)
; ;

The preparation, the X-ray identification and the hyperfine properties of Np/sub 2/C/sub 2/Te are described. The neptunium oxide telluride is isostructural with the corresponding rare-earth oxide tellurides which crystallize with the tetetragonal La/sub 2/O/sub 2/Te-type. /sup 237/Np Mossbauer absorption spectrometry measurements at 4.2 K are reported: Np/sub 2/O/sub 2/Te is found to be magnetic at this temperature and the isomeric shift value (+ 26.3(2) mm.s/sup -1/ relative to NpA1/sub 2/) is consistent with a trivalent Np ion thus confirming the crystallographic assumptions.

Research Organization:
Institut Curie, Section de Physique et Chimie, (Physico-chimie des Elements Transuraniens), Paris
OSTI ID:
6084499
Journal Information:
Mater. Res. Bull.; (United States), Journal Name: Mater. Res. Bull.; (United States) Vol. 20:9; ISSN MRBUA
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
360603 -- Materials-- Properties
ABSORPTION SPECTROSCOPY
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ALUMINATES
ALUMINIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALLIZATION
CRYSTALLOGRAPHY
DIFFRACTION
HEAVY NUCLEI
HYPERFINE STRUCTURE
ISOMER SHIFT
ISOTOPES
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LANTHANUM TELLURIDES
MAGNETIC PROPERTIES
MOESSBAUER EFFECT
NEPTUNIUM 237
NEPTUNIUM COMPOUNDS
NEPTUNIUM ISOTOPES
NEPTUNIUM OXIDES
NEPTUNIUM TELLURIDES
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RADIOISOTOPES
RARE EARTH COMPOUNDS
SCATTERING
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
TELLURIDES
TELLURIUM COMPOUNDS
TETRAGONAL LATTICES
TRANSURANIUM COMPOUNDS
VALENCE
X-RAY DIFFRACTION
YEARS LIVING RADIOISOTOPES