Abstract
A complete description of the electric field gradient (EFG) tensor at the M2 site of Fe2+ in a natural magnesium-rich orthopyroxene (orthoenstatite) was obtained from single-crystal Mössbauer spectra of57Fe. The sign ofV zz , asymmetry parameter η, and orientation of the tensor with respect to the crystallographic axesa, b andc were determined.V zz is positive, and its direction is about (±0.07). The data for the tensor at the M1 site of Fe2+ are less accurate.V zz at M1 may be assumed to be about parallel to the [111] direction. The results obtained for orthoenstatite are compared with the data of other pyroxenes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
B.J. Evans, S. Ghose and S.S. Hafner, Journal of Geology 75(1967)306.
D. Virgo and S.S. Hafner, Mineral. Soc. Amer. Spec. Pap. 2(1969)67.
S.S. Hafner and D. Virgo, Science 165(1969)285.
G.K. Shenoy, G.M. Kalvius and S.S. Hafner, J. Appl. Phys. 40(1969)1314.
C.W. Burnham, Y. Ohashi, S.S. Hafner and D. Virgo, Amer. Mineralogist 56(1971) 850.
G.M. Bancroft, P.G.L. Williams and R.G. Burns, Amer. Mineralogist 56(1971)1617.
P. Zory, Phys. Rev. A140(1965)1401.
R. Zimmermann, Nucl. Instr. Meth. 128(1975)537.
F. Varret, J. Phys. Chem. Sol., 37(1976)265.
R.W. Dundon and S.S. Hafner, Science, 174(1971)581.
J. Stanek, S.S. Hafner, J.R. Regnard and A. El Goresy, Hyp. Int. 28(1986)829.
J. Wiedenmann, J.R. Regnard, G. Fillion and S.S. Hafner, J. Phys. C19(1986)3683.
J. Stanek, Nucl. Instr. Meth. in Phys. Res. B22(1987)577.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Stanek, J., Hafner, S.S. Electric field gradient tensors of57Fe in orthorhombic (Mg, Fe)SiO3 . Hyperfine Interact 39, 235–252 (1988). https://doi.org/10.1007/BF02394320
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02394320