High Temperature Behavior of the 6.2 keV Mössbauer Transition of Tantalum-181 in Tantalum Metal

Salomon, D.; Wallner, W.; West, Peter J.

doi:10.1007/978-1-4684-8073-3_15

Cited by 4 publications

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“…It has been shown that the high resolution 6.2 keY M6ssbauer resonance of l SlTa can be a competing method to NMR/NAR in measuring the Knight shift in paramagnetic transition metals such as Ta and W. M6ssbauer Knight shift experiments in Ta(H) or Ta(D) as well as in dilute solutions of l SlTa in other transition metals can be a good tool in clarifying the electronic structure of these systems. A further advantage may be also in the large temperature range (up to 2500K) at which the resonance can be observed [33]. …”

Section: Discussionmentioning

confidence: 97%

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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Section: Discussionmentioning

confidence: 97%