Article
Revealing the Hidden Hyperfine Interactions in ϵ-Iron
Physical Review B
Abstract
Herein, evidence for the long-sought finite hyperfine interaction in the high-pressure hexagonal close-packed ε-iron is gained through synchrotron radiation perturbed angular correlation spectroscopy. This method yields an energy splitting of 3.5(5)neV between the mIe= ± 1/2 and mIe = ± 3/2 nuclear sublevels of the iron-57 14.412-keV nuclear excited state at 30(1)GPa and room temperature. This energy splitting is related to a nuclear quadrupole hyperfine interaction with an electric field gradient of eq=1.2(2) x 1016V/cm2. However, there is still a possibility that the splitting of the iron-57 nuclear levels is related to a modest magnetic hyperfine interaction of ca. 0.40(5) T.
Department(s)
Chemistry
Research Center/Lab(s)
Center for High Performance Computing Research
Keywords and Phrases
- Electric fields,
- Excited states,
- Synchrotron radiation, Electric field gradients,
- Energy splittings,
- Hexagonal close packed,
- High pressure,
- Hyperfine interactions,
- Nuclear levels,
- Nuclear quadrupole,
- Perturbed angular correlation spectroscopy, Iron
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2020 American Physical Society (APS), All rights reserved.
Publication Date
1-1-2020
Publication Date
01 Jan 2020
Disciplines
Citation Information
Dimitrios Bessas, Ilya Sergueev, Konstantin Glazyrin, Cornelius Strohm, et al.. "Revealing the Hidden Hyperfine Interactions in ϵ-Iron" Physical Review B Vol. 101 Iss. 3 (2020) ISSN: 2469-9950; 2469-9969 Available at: http://works.bepress.com/fernande-grandjean/278/