Moessbauer effect used to study rare-earth oxides synthesized by a high-pressure method

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.37.35· OSTI ID:5741348

Wenhui, Su; Xiaoxiang, Liu; Mingzhi, Jin; Weiming, Xu; Daiming, Wu; Milan, Liu

In the present paper the double rare-earth oxide solid solutions (EuR)O/sub 3/ (R = Gd, Dy, Ho, Er, Yb, Lu) are synthesized for the first time with a combination of high pressure and high temperature (3.0 GPa and 1080--1250 /sup 0/C). The analysis of x-ray diffraction shows that all products are B type (monoclinic) structures of single phase. Considering etanot =0 the /sup 151/Eu Moessbauer spectra were fitted by twelve transition lines. It is shown that the isomer shift depends on the unit-cell volume V/sup 1/3/ in a linear fashion.

• Research Organization: Physics Department, Jilin University, Changchun, China
• OSTI ID: 5741348
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
DISPERSIONS
ISOMER SHIFT
LATTICE PARAMETERS
MIXTURES
MOESSBAUER EFFECT
MONOCLINIC LATTICES
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SCATTERING
SOLID SOLUTIONS
SOLUTIONS
VERY HIGH PRESSURE
VERY HIGH TEMPERATURE
X-RAY DIFFRACTION