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α-Manganese Phases containing Technetium-99 (1961)

LAM, D. J. ; DARBY, J. B. ; DOWNEY, J. W. ; [et al.]

[s.l.] : Nature Publishing Group

Nature 192 (1961), S. 744-744

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ISSN: 1476-4687

Source: Nature Archives 1869 - 2009

Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics

Notes: [Auszug] Table 1. LATTICE PARAMETERS OF SEVERAL O-MANGANESE PHASES CONTAINING TECHNETIUM-99 X-ray data Alloy composition, System atomic per cent a9 (A.) Sc-Tc 87-5 Tc; 12-5 Sc 9-509 ± 0-001 Ti-Tc 87-5 Tc; 12-5 Ti 9-579 ± 0-001 Hf-Tc 87-5 Tc; 12-5 Hf 9-603 ± 0001 Ta-Tc 83-3 Tc: ...

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1038/192744b0

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The magnetic susceptibility of transition-metal A15-type phases (1970)

Bardos, D. I. ; Waterstrat, R. M. ; Rowland, T. J. ; [et al.]

Springer

Journal of low temperature physics 3 (1970), S. 509-518

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ISSN: 1573-7357

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The temperature dependence of the paramagnetic susceptibility was measured for several binary A15-type compounds of transition elements. Measurements were made between room temperature and either 3° K or the superconducting transition temperature, whichever was higher. The susceptibilities were found to have, in most cases, a small linear temperature dependence. Molar susceptibilities x M , superconducting transition temperaturesT c, and electronic specific heat coefficients γ for these compounds, when plotted as a function of the valence-electron concentratione/a, reveal peaks at ane/a of about 6.5 for all three properties. Compounds containing the 4d-series transition-elements molybdenum or niobium have higherT c and lower x M values than compounds containing the 3d transition-element chromium or vanadium. It appears that an increased mixing of atoms on either of the two crystallographic sites in the A15-type structure can be associated with a significant decrease in the paramagnetic susceptibility of the compound.