| Autor: | D. H. Chaplin, Wayne D. Hutchison, S. J. Harker, G.J Bowden |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Nuclear and High Energy Physics
Range (particle radiation) Zeeman effect Chemistry Astrophysics::High Energy Astrophysical Phenomena Neutron diffraction Resonance Condensed Matter Physics Atomic and Molecular Physics and Optics Magnetic field symbols.namesake symbols Neutron Physical and Theoretical Chemistry Atomic physics Anisotropy Single crystal |
| Zdroj: | Hyperfine Interactions. :307-312 |
| ISSN: | 0304-3843 |
| DOI: | 10.1023/a:1020573322668 |
| Popis: | A NMRON study of magnetically ordered HoF3 using in-situ neutron activated 166mHo (I=7) isoelectronic probes in a spherical single crystal is presented. The optimal sensitivity to resonant change in the gamma-ray anisotropy of the 810 keV daughter gamma-ray emission has been utilised to track the lowest nuclear Zeeman substate resonance over an applied magnetic field range from 0.300 to 0.524 T, corresponding to the frequency range 1.56 to 1.78 GHz. The 2nd lowest substate resonance has also been observed at 0.3 T leading to a value P/h=−32.9(14) MHz for the 166mHo quadrupolar splitting which is consistent with predictions of a dominant negative pseudo-quadrupole interaction in this system. The Ho3+ electronic moment, in zero applied magnetic field, is projected to be 16% smaller than measured previously with neutron diffraction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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