Nuclear Magnetic Resonance in Single Crystal Tantalum

By quantitative evaluation of the nuclear acoustic resonance shift, the temperature dependence of the Knight shift in tantalum is determined for the first time. The experiments are performed in the temperature range of 20 to 300 K. The s-, d-and orbital contributions to the Knight shift, the magnetic susceptibility and the hyperfine fields are specified.Durch quantitative Auswertung der akustischen Kernresonanzverschiebung wird erstmals die Temperaturabhangigkeit der Knightshift in Tantal bestimmt. Die Experimente werden im Temperaturbereich von 20 bis 300 K durchgefiihrt. Die s-, d-und Orbital-Beitrage zur Knightshift, magnetischen Suszeptibilitat und den Hyperfeinfeldern werden einzeln angegeben.

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Nuclear‐acoustic‐resonance determination of the core polarization contribution to the knight shift and hyperfine fields in single‐crystal tantalum

Schanz

Müller

Unterhorst

1979

Physica Status Solidi (b)

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Observation of knight shifts in metallic tungsten and tantalum with the 6.2 keV181Ta M�ssbauer resonance

Salomon

West

1978

Z Physik A

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Completely resolved M6ssbauer spectra for the 6.2keV ~S~Ta transition were measured at R.T. in external magnetic field of 2.8 and 4.4kOe for ~8~Ta impurities in W-and Tametal respectively. A more precise mean value for the g-factor ratio gg/2/g7/2 of 1.797 (3) was obtained. The magnetic moment of the 6.2 keV-state was determined to be + 5.47 (2) n.m. From the hyperfine fields at the 181Ta-nuclei in W a Knight-shift of 2(1)% and in Ta of 1.7(8)% was deduced. For the spectrum of the magnetically splitted Ta-metal absorber a reduced dispersion parameter of 2 ~ = 20 (2) was measured, while the linewidth showed only a slight narrowing.

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Nuclear Magnetic Resonance in Single Crystal Tantalum

Cited by 2 publications

References 9 publications

Nuclear‐acoustic‐resonance determination of the core polarization contribution to the knight shift and hyperfine fields in single‐crystal tantalum

Nuclear‐acoustic‐resonance determination of the core polarization contribution to the knight shift and hyperfine fields in single‐crystal tantalum

Observation of knight shifts in metallic tungsten and tantalum with the 6.2 keV181Ta M�ssbauer resonance

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