MOSSBAUER STUDIES OF THE IRRADIATION EFFECTS OF Y1.6CA1.4V0.45SN0.5FE4.05O12

Authors
HSIA YF XIONG HQ
Citation
Yf. Hsia et Hq. Xiong, MOSSBAUER STUDIES OF THE IRRADIATION EFFECTS OF Y1.6CA1.4V0.45SN0.5FE4.05O12, Hyperfine interactions, 94(1-4), 1994, pp. 2053-2058
Citations number
6
Categorie Soggetti
Physics, Atomic, Molecular & Chemical","Physics, Nuclear","Physics, Condensed Matter
Journal title
Hyperfine interactions → ACNP
ISSN journal
03043843
Volume
94
Issue
1-4
Year of publication
1994
Pages
2053 - 2058
Database
ISI
SICI code
0304-3843(1994)94:1-4<2053:MSOTIE>2.0.ZU;2-7
Abstract
Y1.6Ca1.4V0.45Sn0.5Fe4.05O12 has been bombarded with a 0.56 GeV C6+ io n beam. The vacancies and vacancy clusters induced by the irradiation change the directions of hyperfine fields around the defects. The redu ction of the magnetic hyperfine field is caused by the lower superexch ange field due to the formation of the O2- vacancies. The change of di rection of the hyperfine field has also been observed in Mossbauer spe ctra. X-ray diffraction showed that the defects give rise to an increa se of the lattice constant of the samples.