VI. <i>Results of crystal analysis</i>

Vegard, L.

doi:10.1080/14786441608635544

Cited by 86 publications

(36 citation statements)

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“…Vegard's methods for collecting and interpreting data closely followed those of the Braggs, and his earliest studies were cautious. His structure determinations of silver (10), gold and lead (11) confirmed the expectations that they would have a similar space-lattice to the one for copper already published by the Braggs (12). However, he soon showed boldness in his choice of structures to determine, including the earliest ones in a tetragonal space group (11).…”

Section: Pioneering Structure Determinations and Later Extensionssupporting

confidence: 54%

“…His structure determinations of silver (10), gold and lead (11) confirmed the expectations that they would have a similar space-lattice to the one for copper already published by the Braggs (12). However, he soon showed boldness in his choice of structures to determine, including the earliest ones in a tetragonal space group (11). He attempted significant applications to chemistry, unfortunately exceeding the capabilities of the methodology.…”

Section: Pioneering Structure Determinations and Later Extensionsmentioning

confidence: 54%

“…For additional measurements to be made, a different face, which might be from an entirely different specimen crystal, had to be placed in reflecting position. Thus the scaling between different orders of diffraction followed a trend that was understood in general terms (11), but the scaling between reflections from different faces could be completely arbitrary.…”

Section: Apparatus and Proceduresmentioning

confidence: 99%

“…His research benefited from the availability of large high-quality specimens in the excellent Mineralogical Museum at his university, initially in the same building as his laboratory. He expresses his thanks (11) for the loan of specimens, including precious ones like gold.…”

Section: Apparatus and Proceduresmentioning

confidence: 99%

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Lars Vegard: key communicator and pioneer crystallographer

Schwalbe

2013

Crystallography Reviews

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Abstract. The Norwegian physicist Lars Vegard studied with William H. Bragg in Leeds and then with Wilhelm Wien in Würzburg. There, in 1912, he heard a lecture by Max Laue describing the first X-ray diffraction experiments and took accurate notes which he promptly sent to Bragg. Although now remembered mainly for his work on the physics of the aurora borealis, Vegard also did important pioneering work in three areas of crystallography. He derived chemical insight from series of related crystal structures that he determined, Vegard's Law relates the unit cell dimensions of mixed crystals to those of the pure components, and he determined some of the first crystal structures of gases solidified at cryogenic temperatures.

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Section: Pioneering Structure Determinations and Later Extensionssupporting

confidence: 54%

Section: Pioneering Structure Determinations and Later Extensionsmentioning

confidence: 54%

Section: Apparatus and Proceduresmentioning

confidence: 99%

Section: Apparatus and Proceduresmentioning

confidence: 99%

See 2 more Smart Citations

Lars Vegard: key communicator and pioneer crystallographer

Schwalbe

2013

Crystallography Reviews

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“…Rutile-type crystals have the space-group P 42 2~ 2 m n m with Z =2, the cations occupy equivalent position 2(a) at 0, 0, 0 and ½, ½, ½ with site symmetry mmm, the anions reside in 4(f) at + (x, x, 0; ½ + x, ½-x, ½) with site symmetry mm (Vegard, 1916). Unless otherwise noted below the atomic scattering curves used for the calculations of the Fc are from Doyle & Turner (1968) and a Hughes-type weighting scheme was applied in the least-squares calculation.…”

Section: Methodsmentioning

confidence: 99%