Study of 57Fe Mössbauer effect in RFe2Zn20 ( R = Lu, Yb, Gd)
Journal Article
·
· Journal of Physics. Condensed Matter
- Ames Lab., Ames, IA (United States)
- Ames Lab., Ames, IA (United States); Lanzhou Univ. Gansu Province (China). Institute of Applied Magnetics
In this document we report measurements of 57Fe Mössbauer spectra for RFe2Zn20 (R = Lu, Yb, Gd) from ~ 4.5 K to room temperature. The obtained isomer shift values are very similar for all three compounds, their temperature dependence was analyzed within the Debye model and resulted in an estimate of the Debye temperatures of 450-500 K. The values of quadrupole splitting at room temperature change with the cubic lattice constant a in a linear fashion. For GdFe2Zn20, ferromagnetic order is seen as an appearance of a sextet in the spectra. The 57Fe site hyperfine field for T → 0 was evaluated to be ~ 2.4 T.
- Research Organization:
- Ames Lab., Ames, IA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1221920
- Report Number(s):
- IS-J-8763
- Journal Information:
- Journal of Physics. Condensed Matter, Vol. 27, Issue 33; ISSN 0953-8984
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 5 works
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