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Ted Janssen

No need for reconsidering the definition...

When in the seventies and eighties materials were analysed which did not show lattice periodicity but were very similar to the then known crystals the IUCr decided to extend the definition of 'crystal′. This resulted in the well known definition which is a bit vague but points to a spectrum with essentially Bragg peaks. By being a bit vague one could also include crystals with defects and finite sizes. Of course, it was well known that there are other notions of order. ...

Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0044-2968
Volume: 222, 06/2007
Pages: 311_1

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