Getting oneself together

Article Abstract:

Germanium-silicon (Ge-Si) alloys grown over a layer of silicon, form pyramids that are surprisingly directly over the tips of the those of the first. The first and second layer pyramids are correlated while a lateral correlation also exists within the second layer. A repetition of the pyramid growth to form more arrays gives more ordered structures. The strain induced by the Ge-Si crystals over the atomic planes of the silicon is highest at the tips and is transmitted to the top layers. The strain maxima of two pyramids coalesce into one when the pyramids are close together.

Growth, Crystals, Alloys, Crystal growth

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Fullerenes finally score as Nobel committee honours chemists

Article Abstract:

The Nobel Foundation has decided to award chemists Harold W. Kroto, Richard E. Smalley and Robert F. Curl, Jr. Nobel prizes for chemistry for their contributions to the discovery of fullerenes. Although the nomination of the three chemists was no surprise to many in the field, many chemists were surprised with the timing of the award. Some chemists such as David Jones believed that Nobel prizes for fullerenes will only be given after commercial applications of the chemical were developed.

Achievements and awards, Carbon allotropes, Nobel Foundation, Smalley, Richard E., Curl, Robert F., Jr., Kroto, Harold W.

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Painting by numbers: chemist Wilhelm Ostwald added color to the art of world

Article Abstract:

The enthusiastic amateur painter Wilhelm Ostwald who is also noble laureate in physical chemistry, through his paintings put forward his theories about color in practice. The life and career experiences of Wilhelm Ostwald are mentioned.

Portrayals, Works, Painters, Painters (Artists), Ostwald, Wilhelm

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