Genre
- Journal Article
Room temperature Fe-57 Mossbauer effect measurements of the one- and two-dimensional quasicrystalline phases of Al75Pd15Fe10 are reported. Both materials show Mossbauer spectra with asymmetric doublets which have been analyzed in terms of a distribution of quadrupole splittings, and in terms of a discrete expansion of quadrupole splittings. The one-dimensional material shows the following characteristics compared with the two-dimensional material; (1) a larger mean quadrupole splitting, (2) a more positive mean isomer shift and (3) a broader distribution of quadrupole splittings. These results indicate that the local Fe environments in the one-dimensional material are less isotropic than in the two-dimensional material and that this material is characterized by a higher concentration of open volume defects.
DUNLAP, RA, DALHOUSIE UNIV,DEPT PHYS,HALIFAX,NS B3H 3J5,CANADA.
OXFORD; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB
PERGAMON-ELSEVIER SCIENCE LTD
PT: J; CR: DUNLAP RA, 1993, MAT SCI ENG R, V10, P141 DUNLAP RA, 1993, PHILOS MAG B, V67, P69 EIBSCHUTZ M, 1986, PHYS REV LETT, V56, P169 GUPTA A, 1989, PHYS REV B, V39, P8757 HE LX, 1988, PHYS REV LETT, V61, P1116 HESSE J, 1974, J PHYS E, V7, P526 LAWTHER DW, 1990, HYPERFINE INTERACT, V60, P785 LAWTHER DW, 1993, J NON-CRYST SOLIDS, V153, P49 LAWTHER DW, 1993, J NONCRYSTALLINE MAT, V154, P49 LAWTHER DW, 1994, PHYS REV B, V49, P3183 SRINIVAS V, 1989, PHYS REV B, V40, P9590 TSAI AP, 1992, PHIL MAG LETT, V66, P203 WANG Z, 1993, J PHYS-CONDENS MAT, V5, P663 ZHANG H, 1990, PHYS REV B, V41, P3482; NR: 14; TC: 0; J9: SOLID STATE COMMUN; PG: 3; GA: RA106
Source type: Electronic(1)
Language
- English
Subjects
- Physics, Condensed Matter
- QUASI-CRYSTALS
- NUCLEAR RESONANCES
- DECAGONAL QUASI-CRYSTAL