Measurement of the hyperfine anomaly between {sup 187}Os and {sup 189}Os

Journal Article · Thu Oct 31 23:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.2310· OSTI ID:389415

Dumelow, T; Riedi, P C ^[1]; Hagn, E; Zech, E ^[2]

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1. Department of Physics, University of St. Andrews, St. Andrews, Fife, KY16 9SS, Scotland (United Kingdom)
2. Physik-Department, Technische Universitaet Muenchen, D-85748 Garching (Germany)

NMR and spin echo measurements were performed on dilute samples of {sup 187}Os and {sup 189}Os in Fe. The magnetic hyperfine splitting frequencies {nu}{sub {ital M}}={vert_bar}{ital g}{mu}{sub {ital N}}B{sub HF}{sup (eff)}/{ital h}{vert_bar} at 4.2 K were determined to be 111.17(1) and 371.00(5) MHz for {sup 187}Os{ital Fe} and {sup 189}Os{ital Fe}, respectively. Taking into account the known magnetic moments, the hyperfine anomaly is deduced to be {sup 187}{Delta}{sub Fe}{sup 189} = +0.0195(2), which is of opposite sign and much smaller than expected theoretically. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 389415
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 54; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HYPERFINE STRUCTURE
IRON
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
NUCLEAR MAGNETIC RESONANCE
OSMIUM 187
OSMIUM 189
SPIN ECHO