Nuclear Forward Scattering of Synchrotron Radiation by 99 Ru.

Authors :: Bessas, D.
Merkel, D. G.
Chumakov, A. I.
Rüffer, R.
Hermann, R. P.
Sergueev, I.
Mahmoud, A.
Klobes, B.
McGuire, M. A.
Sougrati, M. T.
Stievano, L.
Source :: Physical Review Letters. 10/3/2014, Vol. 113 Issue 14, p147601-1-147601-5. 5p.
Publication Year :: 2014
Abstract: We measured nuclear forward scattering spectra utilizing the 99Ru transition, 89.571(3) keV, with a notably mixed E2/M1 multipolarity. The extension of the standard evaluation routines to include mixed multipolarity allows us to extract electric and magnetic hyperfine interactions from 99Ru-containing compounds. This paves the way for several other high-energy Mössbauer transitions, E ∼ 90 keV. The high energy of such transitions allows for operando nuclear forward scattering studies in real devices. [ABSTRACT FROM AUTHOR]